CN204302226U - A kind of magnet sensor arrangement detected for magnetic memory two-dimensional - Google Patents
A kind of magnet sensor arrangement detected for magnetic memory two-dimensional Download PDFInfo
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- CN204302226U CN204302226U CN201420807850.8U CN201420807850U CN204302226U CN 204302226 U CN204302226 U CN 204302226U CN 201420807850 U CN201420807850 U CN 201420807850U CN 204302226 U CN204302226 U CN 204302226U
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Abstract
The utility model provides a kind of magnet sensor arrangement detected for magnetic memory two-dimensional, comprise stepper motor automatic scanning system, magnetic memory two-dimensional detection probe and magnetic memory two-dimensional detection platform, by stepper motor automatic scanning system, the uniform motion that magnetic memory two-dimensional detection probe positions and specifies is controlled; To the stray field real time data acquisition of stand under load ferromagnetic component surface normal component Y and tangential component X; Two-dimensional magnetic signal detection platform is adopted to carry out real-time Transmission, process to the data collected, realize accurately judging stress concentration portion position with the zero crossing of tangential magnetic field component X peak value and normal magnetic field component Y, and judge stress concentration degree with Lie groupoid closed interval size.Really achieving magnetic memory two-dimensional to detect, is the breakthrough of Magnetic memory testing.
Description
Technical field
The utility model belongs to metal magnetic memory test field, is specifically related to a kind of magnet sensor arrangement detected for magnetic memory two-dimensional.
Background technology
At home, the nineties in 20th century, Russia scholar Du Bofu professor proposed metal magnetic memory detection technology (MMMT) first in China's the 7th Non-Destructive Testing annual meeting.It mainly with hardware static stress and distortion concentration zones for surveyed area, the stress of hardware is concentrated, initial failure and damage etc. diagnose fast and accurately, can take measures before part failure, thus avoid accident to occur or reduce the extent of damage, in fatigue damage and lifetime assessment, be rich in potentiality to be exploited, be one of 21 century promising Dynamic Non-Destruction Measurement (NDT).Magnetic memory testing has that equipment is light and handy, easy and simple to handle, highly sensitive, good reliability, and Lift-off effect impact little, do not need the features such as special magnetizing equipment.But current magnetic memory detecting method mainly studies the stray field normal component value that ferromagnetic component surface produces, and evaluates ferromagnetic component stress concentration portion position with its zero crossing feature.Alone stray field normal component judges that the method for stress concentration portion position has isolated the stray field normal direction character pair relevant between tangential component, causes and to concentrate with stress and the information dropout of early stage damage characteristic, occurs undetected and erroneous judgement unavoidably.And at present for tangential component H
px research that () launches is little, and trace it to its cause mainly tangential component H
px () is relative to normal component H
py () is very faint, to tangential component H
px also there is many problems in the extraction of (), is difficult to accurately measure and process.And the utility model can effectively realize detecting the magnetic memory two-dimensional of metal, to further developing of magnetic memory detection technology, there is good facilitation.
Summary of the invention
The purpose of this utility model is to provide a kind of magnet sensor arrangement detected for magnetic memory two-dimensional, can only measure normal component H at present to solve to metal magnetic memory test device
py (), can not measure tangential component H simultaneously
pthe difficult problem of (x).The purpose of this utility model is also to provide a kind of magnetic memory two-dimensional detection method.
For achieving the above object, the utility model have employed following technical proposals:
A kind of magnet sensor arrangement detected for magnetic memory two-dimensional, comprise stepper motor automatic scanning system, magnetic memory two-dimensional detection probe and magnetic memory two-dimensional detection platform, stepper motor automatic scanning system and magnetic memory two-dimensional detection probe and magnetic memory two-dimensional detection platform communicate to connect, it is characterized in that, described stepper motor automatic scanning system comprises base, controllor for step-by-step motor, X-axis travel mechanism and Y-axis moving mechanism; Described base installs Y-axis moving mechanism, and described Y-axis moving mechanism is driven by y-axis motor; X-axis travel mechanism is arranged in Y-axis moving mechanism, is driven by X-axis motor; Controllor for step-by-step motor controls X-axis motor and y-axis motor; Magnetic memory two-dimensional detection probe is arranged in X-axis travel mechanism, controllor for step-by-step motor and magnetic memory two-dimensional detection probe communication connection magnetic memory two-dimensional detection platform.
Described magnetic memory two-dimensional detection probe is arranged in X-axis travel mechanism by fixture.
Described magnet sensor arrangement also comprises a stand under load ferromagnetic component fixed mechanism for fixing stand under load ferromagnetic component.
Described magnetic memory two-dimensional detection probe adopts the sensor based on HMC5883L, it is a kind of surface-pasted high integration module, and with the weak magnetic sensor chip of digital interface, and adopt mistor bridge design, the interference in earth's magnetic field can be shielded, be used for obtaining the three-dimensional magnetic field signal of stand under load ferromagnetic component surface Xx, Xz and Y-direction.HMC5883L adopts I2C EBI, at guarantee simple circuit, under multiple functional prerequisite, reduces the volume of circuit as far as possible, adopts the USB port generally applied of computer to be connected with I2C, is convenient to expansion and application.
Described controllor for step-by-step motor adopts CNC controllor for step-by-step motor.
Described X-axis motor and y-axis motor adopt SH2024B2 type motor.
Described magnetic memory two-dimensional detection platform, on Xx, Xz of gathering the generation of stand under load ferromagnetic component surface and Y-direction three-dimensional magnetic field basis of signals, utilizes vector synthesis to carry out analyzing, processing to obtain Magnetic Memory tangential component H
p(x) and normal component H
p(y) signal, and implement the operations such as judgement and storage.
The uniform motion that the utility model to be positioned sensor by stepper motor automatic scanning system and specifies controls, to orthogonal Xx and Xz of stand under load ferromagnetic component surface normal component Y and tangential component X() stray field real time data acquisition, two-dimensional magnetic signal detection platform is adopted to carry out real-time Transmission to the data collected, process, realize magnetic-field component (the i.e. tangential magnetic field component X magnetic-field component in tangential component Xx and Xz direction being carried out to the X-direction after Vector modulation, lower with) and magnetic-field component (the i.e. normal magnetic field component Y of Y-direction, lower same) carry out the display of real-time magnetic field intensity curve, digital filtering, gradient process, synthesis Lissajous figure etc., stress concentration portion position is accurately judged with the zero crossing of tangential magnetic field component X peak value and normal magnetic field component Y, and judge stress concentration degree etc. with Lie groupoid closed interval size.Really can realize magnetic memory two-dimensional to detect, be the breakthrough of Magnetic memory testing.Achieve the tangential magnetic memory signal and normal direction magnetic memory signal of measuring the generation of stand under load component surface, certainty of measurement is high, by the interference in the design energy automatic shield earth's magnetic field of mistor electric bridge in weak magnetic sensor chip simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the algorithm flow chart of magnetic memory two-dimensional detection platform described in the utility model.
1. magnetic memory two-dimensional detection platform in the drawings; 2. controllor for step-by-step motor; 3. base; 4. magnetic memory two-dimensional detection probe; 5. Y-axis moving mechanism; 6. y-axis stepper motor; 7. X-axis travel mechanism; 8. X-axis stepper motor.
Detailed description of the invention
For the ease of understanding, do to illustrate in detail further to the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of magnet sensor arrangement detected for magnetic memory two-dimensional, comprise stepper motor automatic scanning system, magnetic memory two-dimensional detection probe (4) and magnetic memory two-dimensional detection platform (1), stepper motor automatic scanning system and magnetic memory two-dimensional detection probe (4) communicate to connect with magnetic memory two-dimensional detection platform (1), and described stepper motor automatic scanning system comprises base (3), controllor for step-by-step motor (2), X-axis travel mechanism (7) and Y-axis moving mechanism (6); Described base (3) is installed Y-axis moving mechanism (5), described Y-axis moving mechanism (5) is driven by y-axis motor (6); X-axis travel mechanism (7) is arranged in Y-axis moving mechanism (5), is driven by X-axis motor (8); Controllor for step-by-step motor (2) controls X-axis motor and y-axis motor; Magnetic memory two-dimensional detection probe (4) is arranged in X-axis travel mechanism (7) by fixture, controllor for step-by-step motor (2) and magnetic memory two-dimensional detection probe (4) communication connection magnetic memory two-dimensional detection platform (1).X-axis travel mechanism (7) is for determining scanning line, and Y-axis moving mechanism (6) is for vertically moving magnetic memory two-dimensional detection probe (4) scanning test block surface.
Described magnet sensor arrangement also comprises a stand under load ferromagnetic component fixed mechanism for fixing stand under load ferromagnetic component.
Described magnetic memory two-dimensional detection probe (4) adopts the sensor based on HMC5883L, it is a kind of surface-pasted high integration module, and with the weak magnetic sensor chip of digital interface, and adopt mistor bridge design, the interference in earth's magnetic field can be shielded, be used for obtaining the three-dimensional magnetic field signal of stand under load ferromagnetic component surface Xx, Xz and Y-direction.HMC5883L adopts I2C EBI, at guarantee simple circuit, under multiple functional prerequisite, reduces the volume of circuit as far as possible, adopts the USB port generally applied of computer to be connected with I2C, is convenient to expansion and application.
Described controllor for step-by-step motor (2) adopts CNC controllor for step-by-step motor.
Described X-axis motor (8) and y-axis motor (6) adopt SH2024B2 type motor.
Described magnetic memory two-dimensional detection platform (1), on Xx, Xz of gathering the generation of stand under load ferromagnetic component surface and Y-direction three-dimensional magnetic field basis of signals, utilizes vector synthesis to carry out analyzing, processing to obtain Magnetic Memory tangential component H
p(x) and normal component H
p(y) signal, and implement the operations such as judgement and storage.The logical algorithm of described magnetic memory two-dimensional detection platform (1) is as shown in Figure 2:
S1 confirms that whether magnetic memory two-dimensional detection probe (4) is the sensor based on HMC5883L;
S2, if based on the sensor of HMC5883L, enter calibration mode, obtains magnetic field environment data, calculates side-play amount, be then saved in flash;
S3 uses magnetic memory two-dimensional detection probe (4) to detect stand under load ferromagnetic component, and detection signal is through detection of returning to zero successively, amplification filtering, AD acquisition step;
S4 magnetic memory two-dimensional detection platform (1) stores the detection signal that AD collects, and by the offset compensation in step S2, obtains three-axle magnetic field signal;
S5 carries out X magnetic field axis signal and magnetic field Y-axis signal vector synthesis to analyze, process to obtain Magnetic Memory tangential component H
p(x) and normal component H
p(y) signal;
S6 processor receives Z axis magnetic field model, Magnetic Memory tangential component H
p(x) and normal component H
p(y) signal, Magnetic field strength curve display, digital filtering, gradient process, synthesis Lie groupoid etc. are carried out in real time at display, accurately judge stress concentration portion position with the zero crossing of tangential magnetic field component X peak value and normal magnetic field component Y, and judge stress concentration degree etc. with Lie groupoid closed interval size.
A kind of magnetic memory two-dimensional detection method, its step is as follows:
1. make and can carry out X-axis and move the stepper motor automatic scanning system (1) with Y-axis movement, stepper motor automatic scanning system (1) comprises X-axis travel mechanism (7) and Y-axis moving mechanism (6); Using the sensor based on HMC5883L as magnetic memory two-dimensional detection probe (4), magnetic memory two-dimensional detection probe (4) is arranged in X-axis travel mechanism (7);
2. calibrate, obtain magnetic field environment data, calculate side-play amount, be then saved in flash;
3. when detecting, stand under load ferromagnetic component is fixed on magnetic memory two-dimensional detection probe (4) front, scanning line is determined by X-axis travel mechanism (7), vertically move magnetic memory two-dimensional detection probe (4) scanning test block surface by Y-axis moving mechanism (6), detection of then returning to zero successively, amplification filtering, AD acquisition step obtain three-axle magnetic field signal
;
4. compensate detecting the three-axle magnetic field signal obtained by side-play amount;
5. X magnetic field axis signal and magnetic field Y-axis signal vector synthesis are carried out analyzing, processing to obtain Magnetic Memory tangential component H
p(x) and normal component H
p(y) signal;
6. carry out Magnetic field strength curve display, digital filtering, gradient process, synthesis Lie groupoid in real time at display, accurately judge stress concentration portion position with the zero crossing of tangential magnetic field component X peak value and normal magnetic field component Y, and judge stress concentration degree with Lie groupoid closed interval size.
Claims (4)
1. the magnet sensor arrangement detected for magnetic memory two-dimensional, comprise stepper motor automatic scanning system, magnetic memory two-dimensional detection probe and magnetic memory two-dimensional detection platform, stepper motor automatic scanning system and magnetic memory two-dimensional detection probe and magnetic memory two-dimensional detection platform communicate to connect, it is characterized in that, described stepper motor automatic scanning system comprises base, controllor for step-by-step motor, X-axis travel mechanism and Y-axis moving mechanism; Described base installs Y-axis moving mechanism, and described Y-axis moving mechanism is driven by y-axis motor; X-axis travel mechanism is arranged in Y-axis moving mechanism, is driven by X-axis motor; Controllor for step-by-step motor controls X-axis motor and y-axis motor; Magnetic memory two-dimensional detection probe is arranged in X-axis travel mechanism, controllor for step-by-step motor and magnetic memory two-dimensional detection probe communication connection magnetic memory two-dimensional detection platform.
2. the magnet sensor arrangement detected for magnetic memory two-dimensional according to claim 1, is characterized in that described magnetic memory two-dimensional detection probe is arranged in X-axis travel mechanism by fixture.
3. the magnet sensor arrangement detected for magnetic memory two-dimensional according to claim 1, is characterized in that described magnet sensor arrangement also comprises a stand under load ferromagnetic component fixed mechanism for fixing stand under load ferromagnetic component.
4. the magnet sensor arrangement detected for magnetic memory two-dimensional according to claim 1, it is characterized in that described magnetic memory two-dimensional detection probe adopts the sensor based on HMC5883L, it is a kind of surface-pasted high integration module, and with the weak magnetic sensor chip of digital interface, and adopt mistor bridge design.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546659A (en) * | 2016-10-27 | 2017-03-29 | 中海石油(中国)有限公司 | A kind of erosion damage on-line detecting system and method based on Magnetic Memory |
| CN108646202A (en) * | 2018-03-29 | 2018-10-12 | 上海市行知实验中学 | Omnidirectional's magnetic induction measuring device and measuring method based on Hall array |
| CN108956756A (en) * | 2018-08-14 | 2018-12-07 | 浙江科技学院 | A kind of highly sensitive ferromagnetic material lossless detection method and system |
| CN109407019A (en) * | 2018-12-13 | 2019-03-01 | 吉林大学 | A kind of magnetic force and magnetic torque 6 DOF intensity full-field distribution automatic detection device |
| CN114113302A (en) * | 2021-11-19 | 2022-03-01 | 合肥工业大学 | A remanufacturable detection method for ferromagnetic thin shafts |
| CN115015380A (en) * | 2022-05-07 | 2022-09-06 | 江苏省特种设备安全监督检验研究院 | A three-dimensional magnetic memory probe with magnetic shield and magnetic flux leakage detector |
-
2014
- 2014-12-19 CN CN201420807850.8U patent/CN204302226U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546659A (en) * | 2016-10-27 | 2017-03-29 | 中海石油(中国)有限公司 | A kind of erosion damage on-line detecting system and method based on Magnetic Memory |
| CN108646202A (en) * | 2018-03-29 | 2018-10-12 | 上海市行知实验中学 | Omnidirectional's magnetic induction measuring device and measuring method based on Hall array |
| CN108956756A (en) * | 2018-08-14 | 2018-12-07 | 浙江科技学院 | A kind of highly sensitive ferromagnetic material lossless detection method and system |
| CN109407019A (en) * | 2018-12-13 | 2019-03-01 | 吉林大学 | A kind of magnetic force and magnetic torque 6 DOF intensity full-field distribution automatic detection device |
| CN109407019B (en) * | 2018-12-13 | 2024-03-22 | 吉林大学 | Magnetic force and magnetic moment six-dimensional intensity full-field distribution automatic detection device |
| CN114113302A (en) * | 2021-11-19 | 2022-03-01 | 合肥工业大学 | A remanufacturable detection method for ferromagnetic thin shafts |
| CN114113302B (en) * | 2021-11-19 | 2023-06-30 | 合肥工业大学 | Remanufacturability detection method for ferromagnetic thin shaft |
| CN115015380A (en) * | 2022-05-07 | 2022-09-06 | 江苏省特种设备安全监督检验研究院 | A three-dimensional magnetic memory probe with magnetic shield and magnetic flux leakage detector |
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| 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: 20150429 Termination date: 20161219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |