CN103728369B - A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device - Google Patents
A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device Download PDFInfo
- Publication number
- CN103728369B CN103728369B CN201310753437.8A CN201310753437A CN103728369B CN 103728369 B CN103728369 B CN 103728369B CN 201310753437 A CN201310753437 A CN 201310753437A CN 103728369 B CN103728369 B CN 103728369B
- Authority
- CN
- China
- Prior art keywords
- data
- module
- chip
- signal
- eddy current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to a kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device it comprise: drive coil device, pumping signal generating means, magnetic test coil device, wireless remote controller, data processing equipment and three dimension acceleration sensor, beneficial effect: the magnetic test coil in the drive coil in drive coil device and magnetic test coil device realizes adjustable respectively according to pipe parameter, and the scalable adjustment of magnetic test coil swinging mounting in magnetic test coil device and can 360 ° of rotary motion, the data that pipe under test is multi-faceted can be obtained, reduce the error of data analysis, make a kind of all-direction multi-functional based on metallic water pipe of the present invention eddy current probe vehicles device that can stretch can adapt to the test of various application scenario, simultaneously, advance by controlling eddy current probe vehicles described in embodiment when finding an abnormal signal in pipe under test carries out repeatedly duplicate measurements with retrogressing, make well to avoid erroneous judgement.
Description
Technical field
The invention belongs to the technical field of nondestructive testing of eddy current, specifically, relate to a kind of all-direction multi-functional based on metallic water pipe and can to stretch eddy current probe vehicles device.
Background technology
Water resource is for very important us, urban water supply pipeline transportation is a focal issue always, pipe leakage is not only waste water resource, more can with serving potential harm, such as corrosive pipeline, cause ground roadbed to damage, leaking serious place more can corrosive ground, causes ground to sink etc.Up to the present, the detection method of pipeline breaking adopts the experience method etc. of relevant function method, pressure adjusting method and workmen mostly.But respectively have its advantages and disadvantages in the detection method of these active services, the micro-judgment fado of such as workmen to be lain prone listening on pipeline according to beaing metallic water pipe again, and such method limitation is larger, and is easily subject to noise; Relevant function method cost is high, and investment is large, and relevant with other factors many; And pressure adjusting method can only reduce water leakage within a period of time, cure the symptoms, not the disease, can not accurately locate and repair leakage point, base be like this, and eddy detection technology arises at the historic moment.
Eddy detection technology is based on the law of electromagnetic induction, by detecting the electromagnetic performance change of metallic conduit to be measured, understands a kind of technology of its defect situation or metallic character.In principle, all factors relevant with electromagnetic induction can as the detected object of detection method of eddy.Eddy current detection method because having fast, the feature such as non-cpntact measurement makes it be widely used in the industrial circles such as electric power, machinery, aviation, chemical industry, atomic energy.
Present eddy detection technology, necessarily technically there is limitation in its pick-up unit, needs large breakthrough, such as:
1, the new-type probe of high-performance of the applicable various application scenario of development is still one of current study hotspot.
2, the triple assessment of eddy detection technology to defect size and shape is the inevitable requirement that product quality improves constantly, and therefore EDDY CURRENT three-dimensional imaging is a great technological breakthrough field.
3, data acquisition and processing (DAP), obtains the most effectively, the most comprehensively and the data of all directions, improves the vital task that signal to noise ratio (S/N ratio) is signal transacting, and multiparameter carrys out the trend that the performance of evaluating material and defect are current demand signal process.
Above 3 outstanding problems are all that existing eddy current testing device can not have, or the function only partly had, and have certain limitation, therefore, develop a kind of eddy current testing device that is multi-functional, comprehensive and robotization and be extremely necessary.
Summary of the invention
Fundamental purpose of the present invention is, for above-mentioned deficiency of the prior art, there is provided a kind of all-direction multi-functional based on metallic water pipe can to stretch eddy current probe vehicles device, it can realize the measurement being adapted to various different pipeline by the structure of adjustment probe, multi-angle, comprehensive in pipe under test, abnormal signal position is measured in the repeatedly circulation that intersects, and degree of accuracy improves greatly.
For achieving the above object, the present invention solves the technical scheme that prior art problem adopts and is: a kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device, and it comprises:
Drive coil device, described drive coil device comprises drive coil support frame and is arranged at the drive coil on described drive coil support frame;
Pumping signal generating means, described pumping signal generating means produces pumping signal, acts on described drive coil, produces corresponding pumping signal in pipe under test;
Magnetic test coil device, described magnetic test coil device comprises magnetic test coil swinging mounting and is installed on the magnetic test coil on magnetic test coil swinging mounting top, the pumping signal that described magnetic test coil produces in pipe under test for receiving described drive coil in far-field region, and will reflect that the pumping signal of pipe under test design parameter is converted to electric signal;
Data processing equipment, described data processing equipment is gathered by the electric signal exported described magnetic test coil, and by low noise amplification, filtering and phase differential Treatment Analysis, obtains the many groups multi-faceted data reflecting pipe under test;
Three dimension acceleration sensor, described three dimension acceleration sensor be installed on one for control detect time in pipe under test advance with retreat eddy current probe vehicles in, be connected with described data processing equipment signal, many groups multi-faceted data of the reflection pipe under test obtained by described data processing equipment carries out data analysis location, completes the detection to pipe under test.
Below above scheme is further elaborated:
As the motor preferably, also comprising a rotation axis and the described rotation axis rotation of a control, described drive coil support frame and described magnetic test coil swinging mounting are individually fixed on described rotation axis, and described rotation axis is connected with the output shaft of described motor.
As comprising a wireless remote controller preferably, further, described wireless remote controller is used for the rotation of motor described in radio remote distance controlling.
As preferred, described magnetic test coil swinging mounting for comprising multiple expansion link, multiple described expansion link is equidistantly connected to described rotation axis.
As the power circuit that preferred, described pumping signal generating means comprises single-chip microcomputer, the CPLD chip be electrically connected with single-chip microcomputer, waveform ROM, D/A converter, low-pass filter, power amplifier and powers for single-chip microcomputer;
Wherein, described single-chip microcomputer produces Waveform Control word, frequency control word according to parameters such as touch-screen incoming frequency, amplitude and dutycycles, and produced Waveform Control word, frequency control word are delivered to CPLD chip, show waveform correlation parameter in real time on the touchscreen, meanwhile, the discretize Wave data of the signal to be generated sent here by upper PC by serial ports is written in waveform ROM in real time; Described CPLD chip realizes the function of phase accumulator in DDS, in each clock period cumulative frequency control word of reference clock, and the address code of generation is delivered to waveform ROM carries out addressing; And described CPLD chip also realizes address latch function, to guarantee to realize single-chip microcomputer address wire and data line time-sharing multiplex when single-chip microcomputer upgrades memory data; Described D/A converter is used for converting digital signal to simulating signal, and by the smoothing filtering of low-pass filter, finally by power amplification circuit, pumping signal is loaded in described drive coil.
As A/D modular converter, digital display module, transmitter module that preferred, described wireless remote controller comprises governor circuit and is electrically connected with governor circuit; Wherein, described A/D modular converter is used for the speed of advancing to described probe vehicles device and direction samples and changes.
The DSP module, dual port RAM, wireless acquisition module, wireless receiving module, single chip processing module and the upper PC that comprise one-chip computer module as preferred, described data processing equipment and be electrically connected with one-chip computer module;
Wherein, described DSP module has been responsible for the conditioning of exciter response signal, gather, digital filtering, the realization of the data processing algorithms such as temperature compensation, dual port RAM is adopted to realize data sharing and high-speed communication between described DSP module and one-chip computer module, one-chip computer module is exclusively used in the management of keyboard/LCD man-machine interface and data communication interface, the data that DSP module is sent here by one-chip computer module show in real time, communicate with upper PC the off-line analysis and the management that realize data by wireless acquisition module, wireless acquisition module is responsible for collection to data and wireless transmission, again via coding chip wireless transmission data, wireless receiving module is primarily of decoding chip and peripheral circuit composition, mainly decode the data of wireless transmission, read in by one-chip computer module and store and transmit, single chip processing module is primarily of single-chip microcomputer and peripheral circuit composition, the process of main complete paired data, to the address code control of wireless receiving module and the communication with upper PC, upper PC runs the software systems that LabVIEW8.2 writes, carry out the selection of collection point and the setting of acquisition mode, then single chip processing module is given the parameter set by EPP Parallel Interface Communication, and then the address code arranged on wireless receiving module, make its data receiving corresponding collection point and gather the data of corresponding number of times, single chip processing module sends by EPP Parallel Interface Communication the data collected to upper PC, thus realize upper PC the data collected are shown, the functions such as storage and real-time analysis.
The acceleration transducer, acceleration signal acquisition process circuit, the Wireless Sensor Network Terminal node that comprise AVR single chip as preferred, described three dimension acceleration sensor and be electrically connected with described AVR single chip;
Wherein, the signal that described acceleration transducer exports is input to a low-pass filter circuit by a signal follow circuit, described low-pass filter circuit removes the part random disturbance in described signal, by filtered signal transmission to AVR single chip, AVR single chip collection signal also resolves, data after resolving are sent to WSN aggregation node wirelessly by WSN terminal node again, aggregation node is connected with computing machine by Serial Port Line, finally carry out host computer demonstration on computers, simultaneously because aggregation node is integrated with Wi-FI module, so obtain system location information by arranging Wi-Fi module on the computing machine of assigned ip address, wherein, Wireless Sensor Network Terminal node is integrated with acceleration transducer MMA7260, AVR single chip and filtering circuit.
The invention has the beneficial effects as follows:
One, a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch magnetic test coil swinging mounting that eddy current probe vehicles device is provided with for comprising multiple expansion link, multiple described expansion link is equidistantly connected to described rotation axis, make when applying in real time, stretching by expansion link, the cantilever tip of magnetic test coil swinging mounting can be adjacent to the inner-walls of duct of different-diameter size, and in the rotation of inner-walls of duct by driven by motor magnetic test coil, realize the multi-faceted rotation of magnetic test coil, the data that multi-angle obtains tube wall different contrast.
Two, multiple magnetic test coil can receive the eddy current signal of reacting pipe inside and outside wall defect situation in far-field region, the pumping signal of the electric signal that data processing equipment exports for magnetic test coil and drive coil carries out data analysis by the labview programing system in upper PC, obtain reacting metal water pipe many groups different pieces of information, ask phase differential and amplitude to carry out confluence analysis, and find out the situation of pipe under test intuitively by the positional information of three dimension acceleration sensor and the phase analysis figure imaging of labview.
Three, the distance of drive coil and magnetic test coil is free to regulate, and coil turn is free to increase and decrease replacing, make inspection vehicle can adapt to the test of various application scenario to a certain extent, and magnetic test coil can 360 ° of rotations under the effect of motor, obtain the data treating that test tube is multi-faceted, reduce the error of data analysis, remote-controlled inspection vehicle can be advanced by controlled vortex flow probe vehicles and be retreated when discovery abnormal signal and carry out repeatedly duplicate measurements, well avoids erroneous judgement.
Accompanying drawing explanation
Fig. 1 is that a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch the principle of work block scheme of eddy current probe vehicles device;
Fig. 2 is the structural representation of the device of magnetic test coil described in the present invention;
Fig. 3 is the structural representation of described rotation axis;
Fig. 4 is that a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch the one-piece construction schematic diagram of eddy current probe vehicles device.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Describe technical scheme of the present invention in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present invention intuitively.
Shown in composition graphs 1, Fig. 2, Fig. 3 and Fig. 4, a kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device, and it comprises:
Drive coil device 40, the drive coil that described drive coil device 40 comprises drive coil support frame and is arranged on drive coil support frame;
Pumping signal generating means 20, described pumping signal generating means 20 produces pumping signal, acts on described drive coil, produces corresponding pumping signal in pipe under test;
Magnetic test coil device 60, described magnetic test coil device 60 comprises magnetic test coil swinging mounting 601 and is installed on the magnetic test coil 602 on magnetic test coil swinging mounting 601 top, the pumping signal that described magnetic test coil 602 produces in pipe under test for receiving described drive coil in far-field region, and the pumping signal of reflection pipe under test design parameter is converted to electric signal;
Data processing equipment 100, described data processing equipment 100 is gathered by the electric signal exported described magnetic test coil 602, and by low noise amplification, filtering and phase differential Treatment Analysis, obtains the many groups multi-faceted data reflecting pipe under test;
Three dimension acceleration sensor 120, advance in pipe under test when described three dimension acceleration sensor 120 is installed on for controlling to detect with in the eddy current probe vehicles 140 retreated, be connected with described data processing equipment 100 signal, many groups multi-faceted data of the reflection pipe under test obtained by described data processing equipment 100 carries out data analysis location, completes the detection to pipe under test.
Simultaneously, in the present invention, as the motor preferably, also comprising a rotation axis 55 and the described rotation axis rotation of a control, described drive coil support frame 201 and described magnetic test coil swinging mounting 601 are individually fixed on described rotation axis 55, and described rotation axis 55 is connected with the output shaft of described motor.
As preferably, comprise a wireless remote controller 80 further, described wireless remote controller 80 is for the rotation of motor described in radio remote distance controlling, and described magnetic test coil swinging mounting 601 is for comprising multiple expansion link, and multiple described expansion link is equidistantly connected on described rotation axis 55, corresponding, described magnetic test coil 602 is set to multiple, is individually fixed in the top of expansion link, and in the present invention, described expansion link is set to eight, and what magnetic test coil 602 was corresponding is provided with eight.
It should be noted that, for making drive coil, magnetic test coil 602, pumping signal generating means 40, data processing equipment 100 not by external interference, when embody rule, also comprise drive coil protection sleeve, described drive coil protection sleeve is provided with one can the gland bonnet of free switch, and described drive coil (not shown) is placed in described drive coil protection sleeve and realizes sealing; Make detect time as required, open gland bonnet, realize the replacing of different size drive coil; Magnetic test coil protection sleeve, the top of described magnetic test coil swinging mounting 601 is provided with magnetic test coil protection sleeve, and multiple described magnetic test coil 602 is placed in described magnetic test coil protection sleeve the protection and the sealing that realize self respectively; In like manner, open magnetic test coil protection sleeve, the replacing of different size magnetic test coil 602 can be realized, namely adjust the number of turn of magnetic test coil 602, meet needs when detecting; Pumping signal generating means protective sleeve, is not subject to the interference of the materials such as water body in pipeline for the protection of pumping signal generating means 40; Data processing equipment protective sleeve, in order to protected data treating apparatus 100 not by the destruction of the materials such as water.
Further, described pumping signal generating means 40 power circuit that comprises single-chip microcomputer, the CPLD chip be electrically connected with single-chip microcomputer, D/A converter, waveform ROM, low-pass filter, power amplifier and power for single-chip microcomputer; Wherein, the W77E058 of Winbond company selected by described single-chip microcomputer; Described CPLD chip selects the EPM7128SLC84-15 of altera corp; Described D/A converter has selected the MAX507 of Maxim company, and it is the DA chip that 12 voltage-types export; 8 bit memory AT28C64B of what described waveform ROM selected is Atmel company, it selects two panels to carry out the least-significant byte of stored waveform data and high 4 respectively; Described single-chip microcomputer produces Waveform Control word, frequency control word produced Waveform Control word, frequency control word are delivered to CPLD chip according to the parameter such as touch-screen incoming frequency, amplitude and dutycycle, show waveform correlation parameter in real time on the touchscreen, meanwhile, the discretize Wave data of the signal to be generated sent here by upper PC by serial ports is written in waveform ROM in real time; Described CPLD chip realizes the function of phase accumulator in DDS, in each clock period cumulative frequency control word of reference clock, and the address code of generation is delivered to waveform ROM carries out addressing; And described CPLD chip also realizes address latch function, to guarantee to realize single-chip microcomputer address wire and data line time-sharing multiplex when single-chip microcomputer upgrades memory data; Described D/A converter is used for converting digital signal to simulating signal, and by the smoothing filtering of low-pass filter, finally by power amplification circuit, pumping signal is loaded in described drive coil;
And A/D modular converter, digital display module, transmitter module that described wireless remote controller 80 comprises governor circuit and is electrically connected with governor circuit; Wherein, described A/D conversion portion carries out sampling and changing due to Yao Dui bis-tunnel (speed and direction), therefore we adopt ADC0809 chip, and the fundamental purpose accepting control end accepts speed that transmitting terminal sends here and directional data, and the direction realized direct current generator and speeds control.
Further, described data processing equipment 100 comprise one-chip computer module and be electrically connected with one-chip computer module DSP module, dual port RAM and, wireless acquisition module, wireless receiving module, single chip processing module and upper PC;
Wherein, described DSP module has been responsible for the realization of the data processing algorithm such as conditioning, collection, digital filtering, temperature compensation of exciter response signal, dual port RAM is adopted to realize data sharing and high-speed communication between described DSP module and one-chip computer module, one-chip computer module is exclusively used in the management of keyboard/LCD man-machine interface and data communication interface, the data that DSP module is sent here by one-chip computer module show in real time, communicate with upper PC the off-line analysis and the management that realize data by wireless acquisition module, complete the detection to pipe under test, wireless acquisition module is responsible for collection to data and wireless transmission, control A/D converter by a single-chip computer AT89C52 and convert simulating signal to digital signal, again via coding chip PT2262 wireless transmission data, and each parallel wireless transmission six bit data, wireless receiving module is primarily of decoding chip PT2272 and peripheral circuit composition, mainly decode the data of wireless transmission, read in by single-chip computer AT89C52 and store and transmit, single chip processing module is primarily of a single-chip computer AT89C52 and peripheral circuit composition, the process of main complete paired data, to the address code control of receiver module and the communication with upper PC, upper PC runs the software systems that LabVIEW8.2 writes, carry out the selection of collection point and the setting of acquisition mode, then single chip processing module is given the parameter set by EPP Parallel Interface Communication, and then the address code arranged on wireless receiving module, make its data receiving corresponding collection point and gather the data of corresponding number of times, single chip processing module sends by EPP Parallel Interface Communication the data collected to upper PC, thus realize upper PC the data collected are shown, the functions such as storage and real-time analysis.
Meanwhile, described three dimension acceleration sensor 120 comprise AVR single chip and be electrically connected with AVR single chip acceleration transducer, acceleration signal acquisition process circuit, Wireless Sensor Network Terminal node;
Wherein, the signal that described acceleration transducer exports is input to a low-pass filter circuit by signal follow circuit, described low-pass filter circuit removes the part random disturbance in described signal, by filtered signal transmission to AVR single chip, AVR single chip collection signal also resolves, data after resolving are sent to WSN aggregation node wirelessly by WSN terminal node again, aggregation node is connected with computing machine by Serial Port Line, finally carry out host computer demonstration on computers, simultaneously because aggregation node is integrated with Wi-FI module, so obtain system location information by arranging Wi-Fi module on the computing machine of assigned ip address, wherein, Wireless Sensor Network Terminal node is integrated with acceleration transducer MMA7260, AVR single chip and filtering circuit.
In sum, a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch eddy current probe vehicles
Device is when concrete practice, relevant according to the diameter, wall thickness, magnetic permeability, conductivity etc. of pipe under test
Parameter, obtain the parameter of corresponding drive coil and magnetic test coil 602, in supporting tool box, select each expansion link top that coil that is close or corresponding requirements is arranged on drive coil support frame 201 and magnetic test coil swinging mounting 601 respectively, and seal cap sealing is good, then according to the radius of the diameter adjustment magnetic test coil swinging mounting 601 of metallic conduit to be measured to reach the requirement being adjacent to tube wall, and regulate the distance of drive coil and multiple magnetic test coil 602 to reach best to make measurement effect, meanwhile, regulate the height of the upright pole 141 in eddy current probe vehicles 140, make the in the same size of itself and magnetic test coil 602 radius, such eddy current probe vehicles measuring pipe under test is adjusted, the effectively testing requirement adapting to various different pipeline.
Touch-screen in pumping signal generating means 40 inputs corresponding eddy current signal, and whether the signal that can be exported by oscillograph or other instrument testings is consistent, if consistent, show to regulate successfully, then the switch driving eddy current probe vehicles 140 is opened, present ground is carried out simple forward-reverse control, see whether eddy current probe vehicles 140 is normally run, and can magnetic test coil swinging mounting 601 rotate, if all are normal, then the preparatory stage of eddy current probe vehicles 140 is ready.
Eddy current probe vehicles 140 is put into pipe under test, the switch of starting loop sensor and wireless module, the software labview of Treatment Analysis is opened in host computer, observe and whether can normally run, whether oscillogram is normal, whether the positional information that acceleration transducer transfers back to computer coincide with current location, just can handle eddy current probe vehicles 140 and run in metallic conduit to be measured after everything in readiness.
Eddy current probe vehicles 140 should at the uniform velocity be advanced in principle, also can non-ly at the uniform velocity measure, depending on actual conditions, when eddy current probe vehicles 140 is run in metallic conduit to be measured, controlled in real time by the change observing waveform, if waveform is normal, then without the need to rotating magnetic test coil swinging mounting 601, now, the signal that multiple magnetic test coil 602 receives, substantially be the full spectrum information of pipe under test, under normal circumstances without the need to being controlled the rotation of magnetic test coil 602 by wireless remote controller 80, and when in order to avoid erroneous judgement, be analyzed by rotating magnetic test coil swinging mounting 601 again, in the event of abnormal signal, then by rotating magnetic test coil 602, repeated measurement is carried out to the position of abnormal signal, comparative analysis, in order to breach before and after position contrast, can also move forward and backward controlled vortex flow probe vehicles 140 front and back in breach position, draw the relevant information of reacting pipe crackle.
After being write in reply number by data processing equipment 100 collection through the respective handling of data processing module signal by being wirelessly transmitted in upper PC, the imaging of eddy current signal can be found out intuitively in the labview programing system of upper PC, displacement signal in conjunction with abnormal signal and acceleration transducer completes the testing to pipe under test, and concrete principle of work block scheme as shown in Figure 1.
By this, a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch eddy current probe vehicles device, the magnetic test coil swinging mounting 601 of the retractable be provided with, make when applying in real time, the cantilever tip of magnetic test coil swinging mounting 601 can be adjacent to the inner-walls of duct of different-diameter size, and drives the rotation of detection probe 70 at inner-walls of duct by miniature small machine, and realizing magnetic test coil 602 can rotate freely, multi-faceted, the data that multi-angle obtains tube wall different contrast.And multiple magnetic test coil 602 can receive the eddy current signal of reacting pipe inside and outside wall defect situation in far-field region, the electric signal that data processing equipment exports for magnetic test coil 602 and the pumping signal that drive coil (not shown) produces carry out data analysis by labview programing system, obtain reacting metal water pipe many groups different pieces of information, ask phase differential and amplitude to carry out confluence analysis, and find out the situation of pipe under test intuitively by the positional information of three dimension acceleration sensor 120 and the phase analysis figure imaging of labview.
Simultaneously, the distance of drive coil (not shown) and magnetic test coil 602 is free to regulate, and coil turn is free to increase and decrease replacing, make eddy current probe vehicles 140 can adapt to the test of various application scenario to a certain extent, and magnetic test coil 602 can 360 ° of rotations under the effect of miniature small machine, obtain the data treating that test tube is multi-faceted, reduce the error of data analysis, eddy current probe vehicles 140 can carry out repeatedly duplicate measurements when discovery abnormal signal by advancing and retreating, and well avoids erroneous judgement.Thus a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch eddy current probe vehicles device, relative to traditional eddy current detecting equipment, various occasion can be adapted to, data acquisition and processing (DAP), obtains the most effectively, the most comprehensively feeds back, and can obtain effectively universal also widespread use.
The foregoing is only the preferred embodiments of the present invention; not thereby its scope of the claims is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. can to stretch an eddy current probe vehicles device based on the all-direction multi-functional of metallic water pipe, it is characterized in that, it comprises:
Drive coil device, described drive coil device comprises drive coil support frame and is arranged at the drive coil on described drive coil support frame;
Pumping signal generating means, described pumping signal generating means produces pumping signal, acts on described drive coil, produces corresponding pumping signal in pipe under test;
Magnetic test coil device, described magnetic test coil device comprises magnetic test coil swinging mounting and is installed on the magnetic test coil on magnetic test coil swinging mounting top, the pumping signal that described magnetic test coil produces in pipe under test for receiving described drive coil in far-field region, and will reflect that the pumping signal of pipe under test design parameter is converted to electric signal;
Data processing equipment, described data processing equipment is gathered by the electric signal exported described magnetic test coil, and by low noise amplification, filtering and phase differential Treatment Analysis, obtains the many groups multi-faceted data reflecting pipe under test;
Three dimension acceleration sensor, described three dimension acceleration sensor be installed on one for control detect time in pipe under test advance with retreat eddy current probe vehicles in, be connected with described data processing equipment signal, many groups multi-faceted data of the reflection pipe under test obtained by described data processing equipment carries out data analysis location, completes the detection to pipe under test.
2. the all-direction multi-functional based on metallic water pipe according to claim 1 can stretch eddy current probe vehicles device, it is characterized in that, also comprise the motor that a rotation axis and controls the rotation of described rotation axis, described drive coil support frame and described magnetic test coil swinging mounting are individually fixed on described rotation axis, and described rotation axis is connected with the output shaft of described motor.
3. the all-direction multi-functional based on metallic water pipe according to claim 2 can stretch eddy current probe vehicles device, it is characterized in that, comprises a wireless remote controller further, and described wireless remote controller is used for the rotation of motor described in radio remote distance controlling.
4. the all-direction multi-functional based on metallic water pipe according to claim 2 can stretch eddy current probe vehicles device, and it is characterized in that, described magnetic test coil swinging mounting is for comprising multiple expansion link, and multiple described expansion link is equidistantly connected to described rotation axis.
5. the all-direction multi-functional based on metallic water pipe according to claim 1 can stretch eddy current probe vehicles device, it is characterized in that, the power circuit that described pumping signal generating means comprises single-chip microcomputer, the CPLD chip be electrically connected with single-chip microcomputer, waveform ROM, D/A converter, low-pass filter, power amplifier and powers for single-chip microcomputer;
Wherein, described single-chip microcomputer produces Waveform Control word, frequency control word according to touch-screen incoming frequency, amplitude and duty cycle parameters, and produced Waveform Control word, frequency control word are delivered to CPLD chip, show waveform correlation parameter in real time on the touchscreen, meanwhile, the discretize Wave data of the signal to be generated sent here by upper PC by serial ports is written in waveform ROM in real time; Described CPLD chip realizes the function of phase accumulator in DDS, in each clock period cumulative frequency control word of reference clock, and the address code of generation is delivered to waveform ROM carries out addressing; And described CPLD chip also realizes address latch function, to guarantee to realize single-chip microcomputer address wire and data line time-sharing multiplex when single-chip microcomputer upgrades memory data; Described D/A converter is used for converting digital signal to simulating signal, and by the smoothing filtering of low-pass filter, finally by power amplification circuit, pumping signal is loaded in described drive coil.
6. the all-direction multi-functional based on metallic water pipe according to claim 3 can stretch eddy current probe vehicles device, it is characterized in that, A/D modular converter, digital display module, transmitter module that described wireless remote controller comprises governor circuit and is electrically connected with governor circuit; Wherein, described A/D modular converter is used for the speed of advancing to described probe vehicles device and direction samples and changes.
7. the all-direction multi-functional based on metallic water pipe according to claim 1 can stretch eddy current probe vehicles device, it is characterized in that, DSP module, dual port RAM, wireless acquisition module, wireless receiving module, single chip processing module and upper PC that described data processing equipment comprises one-chip computer module and is electrically connected with one-chip computer module;
Wherein, described DSP module has been responsible for the conditioning of exciter response signal, gather, digital filtering, the realization of temperature compensation data Processing Algorithm, dual port RAM is adopted to realize data sharing and high-speed communication between described DSP module and one-chip computer module, one-chip computer module is exclusively used in the management of keyboard/LCD man-machine interface and data communication interface, the data that DSP module is sent here by one-chip computer module show in real time, communicate with upper PC the off-line analysis and the management that realize data by wireless acquisition module, wireless acquisition module is responsible for collection to data and wireless transmission, again via coding chip wireless transmission data, wireless receiving module is primarily of decoding chip and peripheral circuit composition, mainly decode the data of wireless transmission, read in by one-chip computer module and store and transmit, single chip processing module is primarily of single-chip microcomputer and peripheral circuit composition, the process of main complete paired data, to the address code control of wireless receiving module and the communication with upper PC, upper PC runs the software systems that LabVIEW8.2 writes, carry out the selection of collection point and the setting of acquisition mode, then single chip processing module is given the parameter set by EPP Parallel Interface Communication, and then the address code arranged on wireless receiving module, make its data receiving corresponding collection point and gather the data of corresponding number of times, single chip processing module sends by EPP Parallel Interface Communication the data collected to upper PC, thus realize upper PC the data collected are shown, store and real-time analysis function.
8. the all-direction multi-functional based on metallic water pipe according to claim 1 can stretch eddy current probe vehicles device, it is characterized in that, acceleration transducer, acceleration signal acquisition process circuit, Wireless Sensor Network Terminal node that described three dimension acceleration sensor comprises AVR single chip and is electrically connected with described AVR single chip;
Wherein, the signal that described acceleration transducer exports is input to a low-pass filter circuit by a signal follow circuit, described low-pass filter circuit removes the part random disturbance in described signal, by filtered signal transmission to AVR single chip, AVR single chip collection signal also resolves, data after resolving are sent to WSN aggregation node wirelessly by WSN terminal node again, aggregation node is connected with computing machine by Serial Port Line, finally carry out host computer demonstration on computers, simultaneously because aggregation node is integrated with Wi-FI module, so obtain system location information by arranging Wi-Fi module on the computing machine of assigned ip address, wherein, Wireless Sensor Network Terminal node is integrated with acceleration transducer MMA7260, AVR single chip and filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753437.8A CN103728369B (en) | 2013-12-31 | 2013-12-31 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753437.8A CN103728369B (en) | 2013-12-31 | 2013-12-31 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103728369A CN103728369A (en) | 2014-04-16 |
| CN103728369B true CN103728369B (en) | 2016-04-06 |
Family
ID=50452534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310753437.8A Expired - Fee Related CN103728369B (en) | 2013-12-31 | 2013-12-31 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103728369B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153713A (en) * | 2016-06-28 | 2016-11-23 | 中国计量大学 | A kind of metallic conduit defect in inner surface detection device |
| CN108398438A (en) * | 2018-05-11 | 2018-08-14 | 中国水利水电科学研究院 | A kind of defects detection vehicle and defect inspection method |
| CN111912900A (en) * | 2020-03-18 | 2020-11-10 | 南京理工大学 | Intelligent detection device based on low-frequency eddy current |
| CN113504294A (en) * | 2021-06-15 | 2021-10-15 | 浙江工业大学 | Steel bar non-uniform corrosion measuring device based on magnetic induction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102422155A (en) * | 2009-05-14 | 2012-04-18 | 西屋电气有限责任公司 | wireless pipe inspection system |
| CN102425708A (en) * | 2011-10-01 | 2012-04-25 | 洛阳理工学院 | Nondestructive flaw detection pipeline robot |
| CN102737493A (en) * | 2012-07-12 | 2012-10-17 | 北京时代之峰科技有限公司 | System and method for wireless measurement of detection instrument |
| CN203101329U (en) * | 2013-03-19 | 2013-07-31 | 浙江大学城市学院 | Device for detecting oxides inside stainless steel tube by single sensor |
| CN204086208U (en) * | 2013-12-31 | 2015-01-07 | 湛江师范学院 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE301264T1 (en) * | 2001-03-07 | 2005-08-15 | Univ Carnegie Mellon | ROBOT SYSTEM FOR INSPECTING GAS PIPES |
| JP2010164416A (en) * | 2009-01-15 | 2010-07-29 | Yokohama National Univ | Corrosion meter and corrosion measuring system |
-
2013
- 2013-12-31 CN CN201310753437.8A patent/CN103728369B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102422155A (en) * | 2009-05-14 | 2012-04-18 | 西屋电气有限责任公司 | wireless pipe inspection system |
| CN102425708A (en) * | 2011-10-01 | 2012-04-25 | 洛阳理工学院 | Nondestructive flaw detection pipeline robot |
| CN102737493A (en) * | 2012-07-12 | 2012-10-17 | 北京时代之峰科技有限公司 | System and method for wireless measurement of detection instrument |
| CN203101329U (en) * | 2013-03-19 | 2013-07-31 | 浙江大学城市学院 | Device for detecting oxides inside stainless steel tube by single sensor |
| CN204086208U (en) * | 2013-12-31 | 2015-01-07 | 湛江师范学院 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
Non-Patent Citations (2)
| Title |
|---|
| 基于低频涡流的油气管道变形检测方法及实现;徐琛 等;《电测与仪表》;20100630;第47卷(第534期);第10-13页 * |
| 高压输电线涡流检测机器人的研制;梁唯溪 等;《无损检测》;20001031;第22卷(第10期);第442-444页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103728369A (en) | 2014-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103728369B (en) | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device | |
| CN102121967B (en) | Diagnostor for predicting operation state of three-phase rotating electromechanical equipment in time | |
| CN204666559U (en) | A kind of non-destructive detection device | |
| CN204086208U (en) | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device | |
| CN102720482A (en) | Vibration monitoring system of high-temperature and high-pressure high-flow rate pipeline | |
| CN101226379A (en) | Drill pipe straightness automatic detection and straightening integrated control system | |
| CN203148426U (en) | Plotting device for inner section of pipeline | |
| CN103364180A (en) | Systems and methods of identifying types of faults | |
| CN104832906A (en) | Boiler expansion detection monitoring system | |
| CN202453324U (en) | Nondestructive testing system for gun barrel | |
| CN106907347A (en) | A kind of axial fan blade embedded radio vibration measuring system | |
| CN107402254A (en) | A kind of transient electromagnetic defect of pipeline checking method and device | |
| CN203606048U (en) | Detector for internal continuous stress of coal seam | |
| CN202994638U (en) | On-line continuous mineral matter detection equipment | |
| CN102452021A (en) | Vertical drilling machine spindle rotation speed monitoring device | |
| CN110954163B (en) | Patrol and examine cable temperature and humidity measurement system based on built-in temperature and humidity sensor robot | |
| CN101726630A (en) | Bearing vibration checking instrument | |
| CN105651222A (en) | Method and system for testing long-axis radial run-out and symmetry degree of wave generator | |
| CN101738403A (en) | Automatic loading system for industrial CT experiment table | |
| CN108955867A (en) | A kind of multichannel remote oscillation signal monitor and monitor system | |
| CN104849086A (en) | DSP-based multi-channel detection instrument | |
| CN203835380U (en) | Conventional four-arm caliper logging instrument | |
| CN206178079U (en) | Naked rotor leakage leads to method rotor winding turn -to -turn short circuit tester | |
| CN103104805B (en) | Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed | |
| CN208736946U (en) | Multifunctional signal detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |