CN119395128A - Method and device for detecting winding displacement excitation vortex of broken copper cable - Google Patents
Method and device for detecting winding displacement excitation vortex of broken copper cable Download PDFInfo
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- CN119395128A CN119395128A CN202411397571.3A CN202411397571A CN119395128A CN 119395128 A CN119395128 A CN 119395128A CN 202411397571 A CN202411397571 A CN 202411397571A CN 119395128 A CN119395128 A CN 119395128A
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Abstract
本申请公开了一种铜电缆线断丝的排线激励涡流检测方法及装置，该方法包括：通过检测探头沿着铜电缆线轴向进行贴附扫查，其中，检测探头包含作为涡流检测探头激发组件的柔性排线线圈、作为涡流检测探头接收组件的差分立式线圈；涡流检测探头激发组件接收到信号系统装置中信号发生器发送的正弦交流激励后，激发铜电缆线表面形成涡流场；涡流检测探头接收组件将接收到涡流场形成的感应电流反馈至上位机。
The present application discloses a wire arrangement excitation eddy current detection method and device for broken wires in copper cables, the method comprising: scanning the copper cable along the axial direction by means of a detection probe, wherein the detection probe comprises a flexible wire arrangement coil as an eddy current detection probe excitation component and a differential vertical coil as an eddy current detection probe receiving component; after the eddy current detection probe excitation component receives the sinusoidal AC excitation sent by the signal generator in the signal system device, the eddy current detection probe surface is excited to form an eddy current field; the eddy current detection probe receiving component feeds back the induced current formed by the eddy current field received to the host computer.
Description
Technical Field
The application relates to the field of electromagnetic nondestructive detection, in particular to a method and a device for detecting winding displacement excitation vortex of broken copper cable wires.
Background
The copper cable is used as a key component for electric energy transmission and important electric equipment connection of a common electric locomotive and a motor train unit train, and the stability and reliability of internal transmission are important. During operation of the locomotive, extrusion and wear occur at times near the junction of the cable and the locomotive. Under long-term operation, the copper wires in the cable can be worn and broken, so that the power transmission performance of the cable is continuously reduced, and the normal operation of a locomotive is influenced.
Eddy current testing is one of the most widely used non-destructive testing tools for detecting defects in various materials having electrical conductivity. At present, due to the factors of the complexity of the internal structure and the composition of the locomotive cable, thicker insulating layers and the like, the detection of the copper broken wires in the locomotive cable is still in a method for testing whether the two ends of the cable are conducted by using a universal meter after the locomotive cable is disassembled by manpower, so that a great deal of manpower and time are consumed, and when the copper broken wires in the cable are mutually wound, the method cannot be used for effectively detecting, and the safety and the reliability of the locomotive operation are affected.
Disclosure of Invention
Aiming at least one defect or improvement requirement of the prior art, the invention provides a method and a device for detecting the winding displacement excitation vortex of a broken copper cable, which adopt a differential vertical coil as an vortex receiving assembly, can realize the elimination of common mode signals and background noise interference while improving the spatial resolution of broken wires, and enhance the sensitivity of an induced magnetic field by arranging an iron core with a magnetism gathering function inside the differential vertical coil, thereby reducing the influence of detection lift-off.
According to the first aspect of the invention, the method comprises the following steps of conducting attachment scanning along the axial direction of a copper cable through a detection probe, wherein the detection probe comprises a flexible flat coil serving as an eddy current detection probe excitation component and a differential vertical coil serving as an eddy current detection probe receiving component, the eddy current detection probe excitation component receives sinusoidal alternating current excitation sent by a signal generator in a signal system device and then excites the surface of the copper cable to form an eddy current field, and the eddy current detection probe receiving component feeds back induced current formed by the eddy current field to a host computer.
In an exemplary embodiment, the flexible flat cable coil included in the detection probe is a planar racetrack flat cable, the differential vertical coil in the eddy current probe receiving assembly includes two vertical coils, wherein a first vertical coil of the two vertical coils is placed at a center position of the flexible flat cable coil loop, a second vertical coil of the two vertical coils is placed at a flat cable position of the flexible flat cable coil, and a distance between the first vertical coil and the second vertical coil is equal to a thickness of a rubber insulation layer of the copper cable.
In an exemplary embodiment, the differential vertical coil includes two vertical coils for differential reception, and an iron core for magnetic focusing is disposed inside the two vertical coils.
In an exemplary embodiment, the eddy current detection probe receiving assembly feeds back the induction current formed by the received eddy current field to the upper computer, wherein the eddy current detection probe receiving assembly converts the received induction current into a digital signal and feeds back the digital signal to the upper computer, and the upper computer processes the received digital signal and then displays a detection signal.
In an exemplary embodiment, after the attachment scanning is performed along the axial direction of the copper cable by the detection probe, the method further comprises the steps that when the detection probe scans that the copper cable has defects, a vortex field formed on the surface of the copper cable is distorted, induced current formed by the distorted vortex field received by the vortex detection probe receiving component is converted into a target digital signal and fed back to the upper computer, and the upper computer performs signal processing on the received target digital signal and then displays a target detection signal, wherein the target detection signal comprises a broken wire detection signal.
In an exemplary embodiment, the sinusoidal ac excitation transmitted by the signal generator in the signal system apparatus is a high frequency sinusoidal ac excitation above 100 kHz.
According to the second aspect of the invention, the invention also provides a flat cable excitation vortex detection device for copper cable wire breakage, which comprises a scanning unit and a feedback unit, wherein the scanning unit is used for conducting attached scanning along the axial direction of a copper cable wire through a detection probe, the detection probe comprises a flexible flat cable coil serving as an excitation component of the vortex detection probe and a differential vertical coil serving as a receiving component of the vortex detection probe, the receiving unit is used for exciting the surface of the copper cable wire to form a vortex field after the excitation component of the vortex detection probe receives sinusoidal alternating current excitation sent by a signal generator in a signal system device, and the feedback unit is used for feeding back induction current formed by the vortex field received by the receiving component of the vortex detection probe to an upper computer.
According to a third aspect of the present invention, there is also provided a computer readable storage medium having a computer program stored therein, wherein the computer program is arranged to perform the above-described method of bus bar excitation eddy current testing of copper cable wire breakage when run.
According to a fourth aspect of the present invention, there is also provided an electronic device including a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the method for detecting a bus bar excitation vortex of copper cable wire breakage by the computer program.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
(1) The invention provides a flat cable excitation eddy current detection method for copper cable wire breakage, which uses a flexible flat cable coil prepared by a flexible printed circuit process as an eddy current excitation assembly, has the advantages of flexibility, portability and the like, can realize the close fitting of a detection probe and a copper cable wire, and avoid detection shake, and in addition, the flat cable coil allows the applied high-frequency sinusoidal excitation to greatly increase the eddy current field intensity at a copper wire near the surface layer, and the skin effect enables the eddy current field to be more concentrated under the high-frequency sinusoidal excitation, thereby realizing the enhancement of the eddy current field on the surface of each copper wire inside the cable and realizing the detection of copper cable wire breakage under large lift-off.
(2) According to the invention, the differential vertical coil is used as an eddy current receiving assembly, the spatial resolution of copper broken wires is improved, the common mode signal and the background noise interference are eliminated, and the iron core with the magnetism gathering effect is arranged inside the differential vertical coil to enhance the sensitivity of an induction magnetic field at a receiving position, so that the lift-off influence is further reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of an alternative method for detecting the excitation vortex of a flat cable with broken copper cable wires according to an embodiment of the present application;
Fig. 2 is a cross-sectional view of an alternative copper cable according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an alternative method for detecting a winding displacement excitation vortex of a broken copper cable wire according to an embodiment of the present application;
FIG. 4 is a top plan view of a probe excitation and reception assembly layout for an alternative method of copper cable broken wire excitation eddy current testing according to an embodiment of the application;
FIG. 5 is a graph comparing experimental results of a flat cable excitation vortex test of an alternative copper cable wire break provided by an embodiment of the present application;
FIG. 6 is a schematic diagram of an alternative method for detecting a winding displacement excitation vortex of a broken copper cable wire according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an alternative device for detecting a winding displacement excitation vortex of a broken copper cable wire according to an embodiment of the present application;
Fig. 8 is a schematic structural diagram of an alternative electronic device according to an embodiment of the present application.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The terms first, second, third and the like in the description and in the claims and in the above drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
According to one aspect of the embodiment of the application, a method for detecting the winding displacement excitation vortex of broken copper cable wires is provided. The following describes a method for detecting a winding displacement excitation vortex of a broken copper cable wire according to an embodiment of the present application with reference to fig. 1.
Fig. 1 is a schematic flow chart of an alternative method for detecting a winding displacement excitation vortex of a broken copper cable wire according to an embodiment of the present application, as shown in fig. 1, the flow chart of the method may include the following steps:
S102, carrying out attachment scanning along the axial direction of a copper cable through a detection probe, wherein the detection probe comprises a flexible flat cable coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe;
s104, after the vortex detection probe excitation component receives sinusoidal alternating current excitation sent by a signal generator in the signal system device, exciting the surface of a copper cable to form a vortex field;
And S106, the eddy current detection probe receiving assembly feeds back the induction current formed by the received eddy current field to the upper computer.
The flat cable excitation vortex detection method for the broken copper cable wire provided by the application can be suitable for a scene of nondestructive detection of the copper cable wire, and when abrasion or broken copper cable wire is detected, the vortex field of the copper cable wire under sinusoidal alternating current excitation is distorted, and a detection probe is adopted for detection and fed back to an upper computer, so that a detection signal displayed in the upper computer is changed.
Illustratively, fig. 2 is a cross-sectional view of an alternative copper cable according to an embodiment of the present application, and as shown in fig. 2, the outer layer of the copper cable is composed of two layers of small strands of copper wires, each strand of copper wires is twisted by 48 copper wires with a diameter of 0.18mm and 3 reinforcing steel wires with a diameter of 0.25mm, and is isolated from the outside by insulating rubber with a thickness of 6.5 mm. The detection target in this embodiment may be a single strand of outermost copper wire, with 1/3 of its copper wire being manually broken. Therefore, the embodiment needs to realize the detection of the broken copper cable under the lifting off of 6.5 mm. The lift-off is referred to herein as the lift-off effect, and describes the phenomenon that a varying electromagnetic field acts near and within a conductor to generate eddy currents, which can be used to measure the thickness of a metallic surface coating or insulating coating (e.g., a lift-off value of 6.5mm for the terminal end of this embodiment).
Fig. 3 is a schematic diagram of an alternative method for detecting a winding displacement excitation vortex of a broken copper cable wire according to an embodiment of the present application, as shown in fig. 3, when a nondestructive test is performed on a copper cable wire, an attachment scan may be performed along an axial direction of the copper cable wire by using a test probe, where the test probe optionally includes an excitation assembly of the vortex test probe and a receiving assembly of the vortex test probe. The flexible flat cable coil can be used as an eddy current detection probe excitation component, and the differential vertical coil can be used as an eddy current detection probe receiving component. The flexible flat cable coil in the embodiment can be a planar runway flat cable, is prepared by a flexible printed circuit process, has the advantages of flexibility, portability and the like, realizes the close fit of the detection probe and the copper cable, and avoids detection shake.
The eddy current detection probe excitation component can receive sinusoidal alternating current excitation sent by a signal generator in the signal system device, and a vortex field is formed on the surface of the detected copper cable under the sinusoidal alternating current excitation. The eddy current detection probe receiving assembly can receive induction current formed by the eddy current field on the surface of the copper cable and feed the induction current back to the upper computer.
Through the steps S102 to S106, the attachment scanning is carried out along the axial direction of the copper cable through the detection probe, wherein the detection probe comprises a flexible flat coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe, the excitation component of the eddy current detection probe receives sinusoidal alternating current excitation sent by a signal generator in a signal system device and then excites the surface of the copper cable to form a vortex field, the receiving component of the eddy current detection probe feeds back induced current formed by the received vortex field to a host computer, the differential vertical coil is adopted as the eddy current receiving component, the elimination of common mode signals and background noise interference can be realized while the spatial resolution of broken wires is improved, and an iron core with a magnetism gathering effect is placed inside the differential vertical coil to enhance the sensitivity of the induced magnetic field, so that the detection lift-off influence is reduced.
In one exemplary embodiment, the flexible flat cable coil included in the detection probe is a planar racetrack flat cable, and the differential vertical coil in the eddy current probe receiving assembly includes two vertical coils, wherein a first vertical coil of the two vertical coils is placed in a center position of the flexible flat cable coil loop, a second vertical coil of the two vertical coils is placed in a flat cable position of the flexible flat cable coil, and a distance between the first vertical coil and the second vertical coil is equal to a thickness of a rubber insulation layer of the copper cable.
In this embodiment, fig. 4 is a top view of a layout of a probe excitation and receiving assembly of an alternative method for detecting a flat cable excitation eddy current according to an embodiment of the present application, where, as shown in fig. 4, a flexible flat cable coil included in a detection probe is a planar runway flat cable, a differential vertical coil in the eddy current detection probe receiving assembly includes two vertical coils, a first vertical coil of the two vertical coils is placed at a central position of a loop of the flexible flat cable coil, a second vertical coil of the two vertical coils is placed at a flat cable position of the flexible flat cable coil, and a distance between the first vertical coil and the second vertical coil is equal to a thickness of a rubber insulation layer of a copper cable, that is, a lift-off value (for example, 6.5 mm) when detecting a copper wire inside the cable.
According to the embodiment, the inductance of the flexible flat cable coil is low, the vortex field is more concentrated due to the skin effect, the enhancement of the vortex field on the surface of each copper wire in the cable is realized, the vertical coil is adopted to induce the magnetic field change generated by vortex, and the spatial resolution of broken copper cable wires is improved.
In one exemplary embodiment, the differential vertical coil includes two vertical coils that perform differential reception, and an iron core for magnetism collection is disposed inside the two vertical coils.
In this embodiment, fig. 5 shows that differential reception is performed for two vertical coils, so that common mode signal and background noise interference can be reduced. Further, an iron core with a magnetism gathering effect is arranged inside the differential vertical coil to enhance the sensitivity of an induction magnetic field at the receiving position and reduce the influence of a lift-off effect.
In one exemplary embodiment, the eddy current probe receiving assembly feeding back the induced current from the received eddy current field to the host computer includes:
s31, the eddy current detection probe receiving assembly converts the received induction current into a digital signal and feeds the digital signal back to the upper computer;
S32, the upper computer processes the received digital signals and then displays detection signals.
In this embodiment, the eddy current detecting probe receiving component may receive the induced current formed by the eddy current field, convert the induced current into a digital signal, and feed the digital signal back to the upper computer, where the upper computer may perform signal processing on the received digital signal and then perform detection signal display.
Fig. 5 is a comparison chart of experimental results of a flat cable excitation eddy current detection of alternative copper cable wire breakage provided by the embodiment of the application, as shown in fig. 5, when the detected copper cable wire is not broken, the waveform of a non-broken wire detection signal displayed by an upper computer is not obviously changed.
Through this embodiment, feedback detection signal to the host computer carries out visual display, can be convenient for detect the defect of copper cable conductor.
In one exemplary embodiment, after the attachment scanning by the inspection probe along the copper cable axis, the method further comprises:
s41, under the condition that the detection probe scans that the copper cable line has defects, the vortex field formed on the surface of the copper cable line is distorted;
s42, the eddy current detection probe receiving component receives the induction current formed by the distorted eddy current field and converts the induction current into a target digital signal, and the target digital signal is fed back to the upper computer;
S43, the upper computer processes the received target digital signal and then displays a target detection signal, wherein the target detection signal comprises a broken wire detection signal.
In this embodiment, fig. 5 is a comparison chart of experimental results of a flat cable excitation eddy current detection of an alternative copper cable wire breakage provided in the embodiment of the present application, as shown in fig. 5, after an attachment scanning is performed along an axial direction of a copper cable wire by a detection probe, an eddy current field formed on a surface of the copper cable wire is distorted when the detection probe scans that the copper cable wire has a defect. The eddy current detection probe receiving component can convert the induced current formed by the received distorted eddy current field into a target digital signal and feed the target digital signal back to the upper computer, and the upper computer processes the received target digital signal and displays a target detection signal, wherein the target detection signal comprises a broken wire detection signal.
In the result displayed by the upper computer, the waveform of the broken wire detection signal of the copper cable with defects is periodically distorted, and the waveform of the broken wire detection signal of the copper cable without broken wire defects fed back to the upper computer is stable and has no distortion. There is a significant signal change at the copper wire break locations with almost no background noise interference and no significant signal change at the wire break locations.
By the embodiment, the detection of high sensitivity, high signal-to-noise ratio and strong stability of copper broken wires under large extraction can be realized.
In one exemplary embodiment, the sinusoidal ac excitation sent by the signal generator in the signal system apparatus is a high frequency sinusoidal ac excitation above 100 kHz.
In this embodiment, as shown in fig. 3 and 6, the inductance of the flexible flat coil is low, which can allow to apply a high-frequency sinusoidal excitation above 100kHz, and under this high-frequency excitation, the skin effect makes the vortex field more concentrated, so as to realize the enhancement of the vortex field on the surface of each copper wire inside the cable, and the skin depth δ can be calculated by the following formula:
Where f is the sinusoidal ac excitation frequency, μ is the magnetic permeability, and σ is the electrical conductivity.
Further, the conductivity σ=5.7x 7 Sm of copper, the magnetic permeability μ=μ 0·μr,μ0＝4π×10-7H·m-1 is vacuum magnetic permeability (magnetic permeability in air is approximately equal to vacuum magnetic permeability), μ r is relative magnetic permeability, μ r ≡1 of non-ferromagnetic material such as copper, thus the skin depth of copper can be further simplified to be:
the detection probe can carry out attachment detection on the cable, when the detection is carried out, a signal generator in the signal system device sends sine alternating current excitation with the frequency of 150kHz and the voltage of 6V to the flexible flat cable coil, and the simplified formula of skin depth calculation of copper shows that when the excitation frequency is 150kHz, the skin depth is about 0.17mm and smaller than the diameter of a single copper wire, and the vortex field is concentrated on the near surface of the copper wire, so that the enhancement of the vortex field on the surface of the copper wire is realized.
In addition, the winding displacement coil allows the applied high-frequency sinusoidal excitation to greatly increase the eddy current field intensity near the surface layer copper wire, the skin effect enables the eddy current field to be more concentrated under the high-frequency sinusoidal excitation, the enhancement of the eddy current field on the surface of each copper wire inside the cable is realized, and the detection of broken wires of the copper cable under large lift-off is realized. The differential vertical coil is used as an eddy current receiving assembly, the spatial resolution of copper broken wires is improved, common mode signals and background noise interference are eliminated, and an iron core with a magnetism gathering effect is arranged inside the differential vertical coil to enhance the sensitivity of an induction magnetic field at a receiving position, so that the lift-off influence is further reduced.
According to another aspect of the embodiment of the application, a device for detecting the winding displacement excitation vortex for implementing the method for detecting the winding displacement excitation vortex of the broken copper cable is also provided. Fig. 7 is a schematic structural diagram of an alternative arrangement excitation vortex detection device for copper cable wire breakage according to an embodiment of the present application, as shown in fig. 7, the device may include:
The scanning unit 702 is configured to perform attachment scanning along an axial direction of the copper cable through a detection probe, where the detection probe includes a flexible flat cable coil as an excitation component of the eddy current detection probe and a differential vertical coil as a receiving component of the eddy current detection probe;
The receiving unit 704 is configured to excite the copper cable surface to form a vortex field after the vortex detection probe excitation component receives the sinusoidal ac excitation sent by the signal generator in the signal system device;
And the feedback unit 706 is used for feeding back the induction current formed by the received vortex field to the upper computer by the vortex detection probe receiving assembly.
It should be noted that, the scanning unit 702 in this embodiment may be used to perform the step S102, the receiving unit 704 in this embodiment may be used to perform the step S104, and the feedback unit 706 in this embodiment may be used to perform the step S106.
The detection probe comprises a flexible flat coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe, wherein the excitation component of the eddy current detection probe is used for exciting the surface of a copper cable to form a vortex field after receiving sinusoidal alternating current excitation sent by a signal generator in a signal system device, the receiving component of the eddy current detection probe is used for feeding back induced current formed by the received vortex field to a host computer, and the differential vertical coil is used as the eddy current receiving component, so that common mode signals and background noise interference can be eliminated while the spatial resolution of broken wires is improved, and an iron core with a magnetism gathering effect is arranged inside the differential vertical coil to enhance the sensitivity of the induced magnetic field, and detection lift-off influence is reduced.
In an exemplary embodiment, the flexible flat cable coil included in the detection probe is a planar racetrack flat cable, the differential vertical coil in the eddy current probe receiving assembly includes two vertical coils, wherein a first vertical coil of the two vertical coils is placed at a center position of the flexible flat cable coil loop, a second vertical coil of the two vertical coils is placed at a flat cable position of the flexible flat cable coil, and a distance between the first vertical coil and the second vertical coil is equal to a thickness of a rubber insulation layer of the copper cable.
In an exemplary embodiment, the differential vertical coil includes two vertical coils for differential reception, and an iron core for magnetic focusing is disposed inside the two vertical coils.
In an exemplary embodiment, the feedback unit includes:
The feedback module is used for converting the received induction current into a digital signal by the eddy current detection probe receiving assembly and feeding the digital signal back to the upper computer;
And the display module is used for displaying the detection signal after the upper computer performs signal processing on the received digital signal.
In an exemplary embodiment, the apparatus further comprises:
The distortion unit is used for distorting a vortex field formed on the surface of the copper cable when the detection probe scans that the copper cable has defects;
the conversion unit is used for converting the induced current formed by the distorted vortex field received by the vortex detection probe receiving assembly into a target digital signal and feeding the target digital signal back to the upper computer;
and the display unit is used for performing signal processing on the received target digital signal by the upper computer and then displaying a target detection signal, wherein the target detection signal comprises a broken wire detection signal.
In an exemplary embodiment, the sinusoidal ac excitation transmitted by the signal generator in the signal system apparatus is a high frequency sinusoidal ac excitation above 100 kHz.
It should be noted that, the examples and the scenarios implemented by the above modules and the corresponding steps are the same, but are not limited to what is disclosed in the above embodiments, and it should be noted that, the above modules may be implemented by software or hardware as a part of an apparatus, where the hardware environment includes a network environment.
According to yet another aspect of an embodiment of the present application, there is also provided a storage medium. Alternatively, in the present embodiment, the storage medium may be used to execute the program code of the method for detecting a winding displacement excitation vortex of any one of the copper cable breaks described above in the embodiment of the present application.
Alternatively, in the present embodiment, the storage medium is configured to store program code for performing the steps of:
s1, carrying out attached scanning along the axial direction of a copper cable through a detection probe, wherein the detection probe comprises a flexible flat cable coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe.
S2, after the vortex detection probe excitation component receives sinusoidal alternating current excitation sent by a signal generator in the signal system device, exciting the surface of the copper cable to form a vortex field.
And S3, feeding back the induction current formed by the received vortex field to the upper computer by the vortex detection probe receiving assembly.
Alternatively, specific examples in the present embodiment may refer to examples described in the above embodiments, which are not described in detail in the present embodiment.
The computer-readable storage medium may include, among other things, any type of disk including floppy disks, optical disks, DVDs, CD-ROMs, micro-drives, and magneto-optical disks, ROM, RAM, EPROM, EEPROM, DRAM, VRAM, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
According to still another aspect of the embodiment of the present application, there is also provided an electronic device for implementing the above-mentioned method for detecting a flat cable excitation vortex of a broken copper cable, where the electronic device may be a server, a terminal, or a combination thereof.
Fig. 8 is a schematic diagram of an alternative electronic device according to an embodiment of the present application, as shown in fig. 8, including a processor 802, a communication interface 804, a memory 806, and a communication bus 808, wherein the processor 802, the communication interface 804, and the memory 806 communicate with each other via the communication bus 808, and wherein,
A memory 806 for storing a computer program;
the processor 802, when executing the computer program stored in the memory 406, performs the following steps:
s1, carrying out attached scanning along the axial direction of a copper cable through a detection probe, wherein the detection probe comprises a flexible flat cable coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe.
S2, after the vortex detection probe excitation component receives sinusoidal alternating current excitation sent by a signal generator in the signal system device, exciting the surface of the copper cable to form a vortex field.
And S3, feeding back the induction current formed by the received vortex field to the upper computer by the vortex detection probe receiving assembly.
Alternatively, the communication bus may be a PCI (PERIPHERAL COMPONENT INTERCONNECT, peripheral component interconnect standard) bus, or an EISA (Extended Industry Standard Architecture ) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus. The communication interface is used for communication between the electronic device and other equipment.
The memory may include RAM or may include non-volatile memory (non volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
As an example, the memory 806 may include, but is not limited to, the scanning unit 702, the receiving unit 704, and the feedback unit 706 in the flat cable excitation eddy current inspection device including the copper cable breakage. In addition, other module units in the flat cable excitation eddy current testing device can be included, but not limited to, the copper cable wire breakage, and the description is omitted in this example.
The processor may be a general-purpose processor, including but not limited to a CPU (Central Processing Unit ), NP (Network Processor, network processor), DSP (DIGITAL SIGNAL Processing unit), ASIC (Application SPECIFIC INTEGRATED Circuit), FPGA (Field-Programmable gate array) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional manners of dividing the actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on this understanding, the technical solution of the present application may be embodied essentially or partly in the form of a software product, or all or part of the technical solution, which is stored in a memory, and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to perform all or part of the steps of the method according to the embodiments of the present application. The Memory includes a U disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, etc. which can store the program codes.
Those of ordinary skill in the art will appreciate that all or part of the steps of the various methods of the above embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable Memory, where the Memory may include a flash disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, etc.
The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The method for detecting the winding displacement excitation vortex of the broken copper cable is characterized by comprising the following steps of:
The method comprises the following steps of performing attachment scanning along the axial direction of a copper cable through a detection probe, wherein the detection probe comprises a flexible flat cable coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe;
after the vortex detection probe excitation component receives sinusoidal alternating current excitation sent by a signal generator in a signal system device, exciting the surface of the copper cable to form a vortex field;
The eddy current detection probe receiving component feeds back the induction current formed by the received eddy current field to the upper computer.
2. The method of claim 1, wherein the flexible flat cable coil included in the probe is a planar racetrack flat cable, and the differential vertical coil included in the probe-receiving assembly includes two vertical coils, wherein a first vertical coil of the two vertical coils is placed in a central position of the flexible flat cable coil loop, a second vertical coil of the two vertical coils is placed in a flat cable position of the flexible flat cable coil, and a distance between the first vertical coil and the second vertical coil is equal to a thickness of a rubber insulation layer of the copper cable.
3. The method for detecting the winding displacement excitation eddy current of the copper cable wire breakage according to claim 2, wherein the differential vertical coil comprises two vertical coils for differential reception, and an iron core for magnetism gathering is arranged inside the two vertical coils.
4. The method of claim 1, wherein the eddy current detection probe receiving module feeds back the induced current generated by the received eddy current field to the host computer comprises:
The eddy current detection probe receiving component converts the received induction current into a digital signal and feeds the digital signal back to the upper computer;
And the upper computer processes the received digital signals and then displays detection signals.
5. The method for detecting a broken copper cable line excitation eddy current according to claim 1, wherein after the attachment scanning by the detection probe along the copper cable line axial direction, the method further comprises:
When the detection probe scans that the copper cable has defects, the vortex field formed on the surface of the copper cable is distorted;
the eddy current detection probe receiving assembly receives the induced current formed by the distorted eddy field and converts the induced current into a target digital signal which is fed back to the upper computer;
And the upper computer performs signal processing on the received target digital signal and then displays a target detection signal, wherein the target detection signal comprises a broken wire detection signal.
6. The method for detecting a winding displacement excitation vortex of a copper cable wire breakage according to claim 1, wherein the sinusoidal ac excitation transmitted from the signal generator in the signal system device is a high-frequency sinusoidal ac excitation of 100kHz or more.
7. The utility model provides a winding displacement excitation vortex detection device of copper cable wire broken wire which characterized in that includes:
the scanning unit is used for carrying out attached scanning along the axial direction of the copper cable through the detection probe, wherein the detection probe comprises a flexible flat cable coil serving as an excitation component of the eddy current detection probe and a differential vertical coil serving as a receiving component of the eddy current detection probe;
The receiving unit is used for exciting the surface of the copper cable to form a vortex field after the vortex detection probe excitation assembly receives sinusoidal alternating current excitation sent by a signal generator in the signal system device;
And the feedback unit is used for feeding back the induction current formed by the received vortex field to the upper computer by the vortex detection probe receiving assembly.
8. The apparatus for detecting a broken copper cable line excitation vortex according to claim 7, comprising:
The distortion unit is used for distorting a vortex field formed on the surface of the copper cable when the detection probe scans that the copper cable has defects;
the conversion unit is used for converting the induced current formed by the distorted vortex field received by the vortex detection probe receiving assembly into a target digital signal and feeding the target digital signal back to the upper computer;
and the display unit is used for performing signal processing on the received target digital signal by the upper computer and then displaying a target detection signal, wherein the target detection signal comprises a broken wire detection signal.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program when run performs the method of any one of claims 1 to 6.
10. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to execute the method according to any of claims 1 to 6 by means of the computer program.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411397571.3A CN119395128A (en) | 2024-10-09 | 2024-10-09 | Method and device for detecting winding displacement excitation vortex of broken copper cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411397571.3A CN119395128A (en) | 2024-10-09 | 2024-10-09 | Method and device for detecting winding displacement excitation vortex of broken copper cable |
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| CN119395128A true CN119395128A (en) | 2025-02-07 |
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| CN202411397571.3A Pending CN119395128A (en) | 2024-10-09 | 2024-10-09 | Method and device for detecting winding displacement excitation vortex of broken copper cable |
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