CN202614710U - Energized conductor flaw detection device based on three-dimensional micrometric displacement mobile platform - Google Patents
Energized conductor flaw detection device based on three-dimensional micrometric displacement mobile platform Download PDFInfo
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- CN202614710U CN202614710U CN 201220259809 CN201220259809U CN202614710U CN 202614710 U CN202614710 U CN 202614710U CN 201220259809 CN201220259809 CN 201220259809 CN 201220259809 U CN201220259809 U CN 201220259809U CN 202614710 U CN202614710 U CN 202614710U
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- slide unit
- probe
- sliding
- mobile platform
- hall probe
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- 239000004020 conductors Substances 0.000 title claims abstract description 44
- 238000006073 displacement reactions Methods 0.000 title claims abstract description 22
- 230000003287 optical Effects 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000009659 non-destructive testing Methods 0.000 description 9
- 230000002950 deficient Effects 0.000 description 7
- 230000001066 destructive Effects 0.000 description 4
- 238000005516 engineering processes Methods 0.000 description 4
- 239000007858 starting materials Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 materials Substances 0.000 description 2
- 238000000034 methods Methods 0.000 description 2
- 239000002887 superconductors Substances 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001939 inductive effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Abstract
Description
Technical field
The utility model relates to the Non-Destructive Testing field, specifically, is a kind of electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform, is applied in, and can detect the inner current with high accuracy flowing information of electrical conductor.
Background technology
Non-Destructive Testing NDT (Non-destructive testing) technology; Be exactly characteristics such as utilization sound, light, magnetic and electricity; Under the prerequisite of not damaging the detected object usability; Detect in the checked object whether have defective or unevenness, provide the information such as size, position, character and quantity of defective, and then judge the general name of all technological means of the present state of living in of checked object.Compare with the destructiveness detection, Non-Destructive Testing has following distinguishing feature: non-destructive, detect the performance that can not damage checked object, so Non-Destructive Testing is called non-destructive again and detects; Comprehensive, be nondestructive owing to detect, therefore can carry out 100% complete detection in case of necessity to checked object, this is that destructive detection can't be accomplished; Whole process; Destructive detection generally only is applicable to starting material is detected; Carry out with starting material to making as generally adopting destructivenesses such as stretching, compression, bending, fatigue to detect all in the mechanical engineering; For product with at articles for use, only if do not prepare to let it continue use otherwise can not carry out destructiveness detection, and Non-Destructive Testing is not because of damaging the performance of detected object; So not only can be to making with starting material, each intermediate link, carrying out the whole process detection up to final finished product; Also can the equipment in using be detected,, all can carry out Non-Destructive Testing like bridge, building construction, all kinds of conveyance conduit, component of machine and set of equipments, automobile, locomotive, aircraft, steamer, nuclear reactor, aerospace equipment and power equipment etc.Press for the Non-Destructive Testing and the Nondestructive Evaluation of a series of new materials of solution, new construction, new technology along with the development of sophisticated technologies such as Aeronautics and Astronautics and nuclear industry.Conventional lossless detection method has visual detection, ultrasound detection, ray detection, magnetic to detect, permeate and detect.Unconventional lossless detection method has acoustic emission, EDDY CURRENT, Leak Detection, diffracted wave time difference method ultrasonic detecting technology, guided wave detection etc.
Have relevant research and progress about the conductor defects detection based on electric current abroad at present, for example, the people such as S.Furtner of Germany adopt reel-to-reel tape transport that superconductor is carried out Performance Detection.Their principle of work is that superconductor moves with roller.Require control device that the Zhang Jinli between position, band and the roller of band is accurately controlled.Use Hall device to scan.This device has the advantage of fast detecting conductor material; Can detect the existence of position, cut and the crackle of defective; Yet this detection can only detect roughly some stronger or bigger defectives, can not provide defective more detailed information.Domestic units such as Tsing-Hua University also utilize the method to make some test macros, have above-mentioned defective equally.
The utility model content
Deficiency to prior art; The utility model proposition is a kind of adopts single hall probe scanning method to detect the pick-up unit of electrical conductor defective; Be a kind of novel, be based upon the cannot-harm-detection device on the electromagnetic induction principle basis, be applicable to the accurate defects detection of various conductive materials.
A kind of electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform comprises three-dimensional micrometric displacement mobile platform, first hall probe, data acquisition module, host computer and photoelectric platform.
Three-dimensional micrometric displacement mobile platform is by comprising that following slide unit, middle slide unit, last slide unit and probe web joint constitute.Wherein, middle slide unit and downslide interstation adopt and are slidingly connected, and are slidingly connected between last slide unit and middle slide unit.The axis of following slide unit, middle slide unit, last slide unit lays respectively on three orthogonal directionss (x, y, z).The last slide unit one probe installing plate that has been dynamically connected that breaks away, the probe installing plate is horizontally disposed with, towards the negative direction of x axle.On the probe installing plate first hall probe is installed, first hall probe is perpendicular to surface level; First hall probe connects data acquisition module, and data acquisition module links to each other with host computer.
When carrying out the conductor defects detection through above-mentioned detection device; Through slide unit, the move mode of going up slide unit and probe web joint, displacement and translational speed control in the control; Thereby drive first hall probe zones of different of energising measured conductor is carried out the detection in magnetic field, the electric current of measured conductor is provided through current feed by current source; First hall probe sends detected magnetic field data to host computer through data acquisition module; Host computer is stored the data that receive; And carry out graphic plotting through the matlab imaging processing; The figure of drawing out at last promptly is the current distributions figure of measured conductor corresponding region, according to the distribution situation of electric current the structure distribution of conductor inside is analyzed, and then is differentiated property of conductor and defect state.
The utility model advantage is:
1, the utility model electrical conductor defect detecting device is at x, y, and the resolution of z can reach 10 μ m, can measure-field region of 670Gauss～670Gauss through selecting suitable hall probe;
2, the utility model electrical conductor defect detecting device simple in structure, build conveniently, easy to operate, be applicable to the accurate defects detection of quick nondestructive of various conductive materials.
Description of drawings
Fig. 1 is the utility model electrical conductor defect detecting device one-piece construction schematic side view;
Fig. 2 is a three-dimensional micrometric displacement mobile platform structure front elevational schematic in the utility model electrical conductor defect detecting device;
Fig. 3 is the electrical conductor defect detecting device structural representation with two hall probes.
Among the figure:
Embodiment
Come the utility model is described further below in conjunction with accompanying drawing.
The utility model electrical conductor defect detecting device comprises three-dimensional micrometric displacement mobile platform 1, first hall probe 2, data acquisition module 3, host computer 4 and photoelectric platform 5, and is as shown in Figure 1.
Three-dimensional micrometric displacement mobile platform 1 is by comprising that following slide unit 101, middle slide unit 102, last slide unit 103 and probe web joint 104 constitute, and control accuracy is lower than 10 μ m, like Fig. 1, shown in Figure 2.Wherein, following slide unit 101, middle slide unit 102, go up slide unit 103 and be the identical rectangle slide unit of physical dimension, constitute with stepper motor 109 by slide plate 105, slide rail 106, slide block 107, roller bearing leading screw 108.Below following slide unit 101 describe for example: the end face of following slide unit 101 has groove 109 on axially, and groove is set with slide rail 106 on 109 bottom surfaces, and slide rail 106 is along the axial setting of slide units 101 down.Slidely connect slide block 107 on the slide rail 106, slide block 107 can be slided on axially at following slide unit 101 along slide rail 106.The stepper motor 109 that slides through of slide block 107 is controlled with roller bearing leading screw 108, is specially: roller bearing leading screw 108 is set, the axis of roller bearing leading screw 108 and following slide unit 101 parallel axes in the groove 110.Roller bearing leading screw 108 two ends penetrate in the sidewall of groove 110, realize the location of roller bearing leading screw 108 thus.And slide unit 101 was fixed with stepper motor 109 output shafts that are fixed on down on the slide unit 101 under an end of roller bearing leading screw 108 connected, and three stepper motors 109 all link to each other with host computer 3, through host computer 3 controls.Said slide block 107 is threaded on the roller bearing leading screw 108.Can drive roller bearing leading screw 108 through stepper motor 109 thus and rotate, move along slide rail 106 thereby roller bearing leading screw 108 drives slide block 107.
Said slide unit 101 bottom surfaces down are fixed on the photoelectric platform 5; Following slide unit 101 is parallel with surface level; Middle slide unit 102 bottom surfaces are fixed on down slide block 107 upper surfaces in the slide unit 101, and middle slide unit 102 is parallel with surface level, and make the axis normal of axis with the following slide unit 101 of middle slide unit 102.Slide block 107 upper surfaces during last slide unit 103 vertically is fixed in the slide unit 102.Through above-mentioned installation the axis of slide unit 101, middle slide unit 102, last slide unit 103 is laid respectively on three orthogonal directionss (x, y, z) thus, and the slide block 107 in the last slide unit 103 is towards the negative direction of x axle.
Said probe web joint 104 is horizontally disposed with, and an end is fixedly mounted on slide unit 103 supports, and it is downward that the other end is fixed with the probe orientation of the high sensitivity vertical with surface level first hall probe 2, the first hall probes 2.First hall probe 2 connects data acquisition module 3, and data acquisition module 3 links to each other with host computer 4.First hall probe 2 is used for surveying the magnetic field data of energising measured conductor top; The magnetic field data that data acquisition module 3 collections first hall probe 2 detects sends to host computer 4.
When carrying out the conductor defects detection through above-mentioned detection device; Through slide unit 102, the move mode of going up slide unit 103 and probe web joint 104, displacement and translational speed control in 109 realizations of three stepper motors of host computer 3 controls; Thereby the zones of different that drives 2 pairs of energisings of first hall probe measured conductor is carried out the detection in magnetic field, and the electric current of energising measured conductor is provided through current feed by current source.First hall probe 2 sends the magnetic field data that detects to host computer 4 through data acquisition module 5; Host computer is stored the data that receive; And carry out graphic plotting through the matlab imaging processing; The figure of drawing out at last promptly is the current distributions figure of measured conductor corresponding region, according to the distribution situation of electric current the structure distribution of conductor inside is analyzed, and then is differentiated property of conductor and defect state.
In order to obtain electrical conductor top magnetic field data more accurately, can adopt following manner to realize in the utility model:
On probe web joint 104, be fixed with one second hall probe 6 through support 111, as shown in Figure 3, second hall probe 6 is same vertical with surface level, and probe orientation is downward; The axis conllinear of the axis of second hall probe 6 and first hall probe 2, and first hall probe and the second hall probe vertical range be 15cm, second hall probe 6 is used for surveying the noise signal data.First hall probe 2 all links to each other with differential amplifier 112 with second hall probe 6, and differential amplifier 112 links to each other with data acquisition module 5.Thus the differential amplifier magnetic field data and second hall probe 6 that receive the energising measured conductor top that first hall probe 2 will detect detect the noise signal data; And magnetic field data is deducted the noise signal data obtain more accurately electrical conductor top magnetic field data, and gather through data acquisition module 5 and to send to host computer 4.Above-mentioned because second hall probe 6 is positioned at just going up of first hall probe 2, can not receive electrical conductor to produce influence of magnetic field when making second hall probe survey the noise signal data.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220259809 CN202614710U (en) | 2012-06-05 | 2012-06-05 | Energized conductor flaw detection device based on three-dimensional micrometric displacement mobile platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220259809 CN202614710U (en) | 2012-06-05 | 2012-06-05 | Energized conductor flaw detection device based on three-dimensional micrometric displacement mobile platform |
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| CN202614710U true CN202614710U (en) | 2012-12-19 |
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| CN 201220259809 CN202614710U (en) | 2012-06-05 | 2012-06-05 | Energized conductor flaw detection device based on three-dimensional micrometric displacement mobile platform |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647506A (en) * | 2013-11-28 | 2014-03-19 | 普德光伏技术（苏州）有限公司 | Detection device and detection method of photovoltaic assembly appearance defects |
| CN103837900A (en) * | 2013-09-09 | 2014-06-04 | 北京鼎臣超导科技有限公司 | Underground cable locating method and device based on vector magnetic field detection |
| CN104730142A (en) * | 2014-11-20 | 2015-06-24 | 北京航空航天大学 | Planar magnetic field scanning and imaging system based on Hall sensor |
| CN105334104A (en) * | 2015-09-23 | 2016-02-17 | 中国特种设备检测研究院 | Magnetic signal detection apparatus |
| CN105486745A (en) * | 2015-12-10 | 2016-04-13 | 中国石油大学(华东) | Defect signal high-precision space imaging system and method based on alternating-current electromagnetic field |
| CN106525918A (en) * | 2016-10-25 | 2017-03-22 | 广西电网有限责任公司电力科学研究院 | Power line clip defect recognition device and method |
| CN107064290A (en) * | 2016-12-30 | 2017-08-18 | 北京工业大学 | Steel oil pipeline defects detection simulating lab test system based on amount magnetic technology |
-
2012
- 2012-06-05 CN CN 201220259809 patent/CN202614710U/en active IP Right Grant
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837900A (en) * | 2013-09-09 | 2014-06-04 | 北京鼎臣超导科技有限公司 | Underground cable locating method and device based on vector magnetic field detection |
| CN103647506A (en) * | 2013-11-28 | 2014-03-19 | 普德光伏技术（苏州）有限公司 | Detection device and detection method of photovoltaic assembly appearance defects |
| CN104730142A (en) * | 2014-11-20 | 2015-06-24 | 北京航空航天大学 | Planar magnetic field scanning and imaging system based on Hall sensor |
| CN104730142B (en) * | 2014-11-20 | 2017-11-17 | 北京航空航天大学 | A kind of flat magnetic field scanning imaging system based on Hall sensor |
| CN105334104A (en) * | 2015-09-23 | 2016-02-17 | 中国特种设备检测研究院 | Magnetic signal detection apparatus |
| CN105486745A (en) * | 2015-12-10 | 2016-04-13 | 中国石油大学(华东) | Defect signal high-precision space imaging system and method based on alternating-current electromagnetic field |
| CN106525918A (en) * | 2016-10-25 | 2017-03-22 | 广西电网有限责任公司电力科学研究院 | Power line clip defect recognition device and method |
| CN107064290A (en) * | 2016-12-30 | 2017-08-18 | 北京工业大学 | Steel oil pipeline defects detection simulating lab test system based on amount magnetic technology |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20170815 Address after: 100094, Beijing Yongfeng Haidian District industrial base, No. 7 Ze Ze North Road Hospital Patentee after: Beijing Ding century superconductor technology Co., Ltd. Address before: 100206, Beijing Shahe Haidian District second woolen mill No. 4 building, 3 floor Patentee before: Beijing Dingchen Super Conductor Technology Co., Ltd. |