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 PDF

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Publication number
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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CN
China
Prior art keywords
slide unit
probe
sliding
mobile platform
hall probe
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Application number
CN 201220259809
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Chinese (zh)
Inventor
王三胜
范留彬
何通
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北京鼎臣超导科技有限公司
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Priority to CN 201220259809 priority Critical patent/CN202614710U/en
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Publication of CN202614710U publication Critical patent/CN202614710U/en

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Abstract

The utility model discloses an energized conductor flaw detection device based on a three-dimensional micrometric displacement mobile platform. The energized conductor flaw detection device comprises athree-dimensional micrometric displacement mobile platform consisting of a lower sliding table, a middle sliding table, an upper sliding table and a probe connection plate, wherein the middle sliding table is connected with the lower sliding table in a sliding manner; the upper sliding table is connected with the middle sliding table in a sliding manner; axial lines of the lower sliding table, the middle sliding table and the upper sliding table are respectively in three orthogonal directions; one side of the upper sliding table is connected with a probe mounting plate in a sliding manner; a hall probe is arranged on the probe mounting plate; therefore, the hall probe is driven to detect the magnetic field in different regions of an energized conductor by controlling movement of the middle sliding table, the upper sliding table and the probe connection plate; detected magnetic field data is transmitted to an upper computer through a data acquisition module; and the upper computer stores the magnetic field data and performs imaging processing so as to draw graphs. The energized conductor flaw detection device is simple in structure, convenient to construct, easy to operate and suitable for quick, lossless and precise flaw detection for various conductive materials.

Description

A kind of electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform

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)

1. the electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform is characterized in that: comprise three-dimensional micrometric displacement mobile platform, first hall probe, data acquisition module, host computer and optical table;
Three-dimensional micrometric displacement mobile platform is by descending slide unit, middle slide unit, last slide unit and probe web joint to 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; 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, and probe orientation is downward; First hall probe connects data acquisition module, and data acquisition module links to each other with host computer.
2. a kind of according to claim 1 electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform is characterized in that: said three-dimensional micrometric displacement mobile platform control accuracy is lower than 10 μ m.
3. a kind of according to claim 1 electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform; It is characterized in that: said upward slide unit, middle slide unit, following slide unit are the identical rectangle slide unit of physical dimension, constitute by slide plate, slide rail, slide block, roller bearing leading screw and stepper motor; Have groove on the end face of following slide unit is axial, be set with slide rail on the groove floor, slide rail is along the axial setting of slide unit down; Slidely connect slide block on the slide rail; The roller bearing leading screw is set, the axis of roller bearing leading screw and following slide unit parallel axes in the groove; Roller bearing leading screw two ends penetrate in the sidewall of groove; And slide unit was fixed with the stepper motor output shaft that is fixed on down on the slide unit under an end of roller bearing leading screw connected, and three stepper motors all link to each other with host computer; Said slide block is threaded on the roller bearing leading screw.
4. like claim 1 or 3 said a kind of electrical conductor defect detecting devices based on three-dimensional micrometric displacement mobile platform, it is characterized in that: said probe installing plate is fixed on the slide block in the slide unit.
5. a kind of according to claim 1 electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform; It is characterized in that: be fixed with one second hall probe through support on the said probe web joint; Second hall probe is vertical with surface level, and probe orientation is downward; The axis conllinear of the axis of second hall probe and first hall probe; First hall probe links to each other with differential amplifier with second hall probe, and differential amplifier links to each other with data acquisition module.
6. like the said a kind of electrical conductor defect detecting device based on three-dimensional micrometric displacement mobile platform of claim 5, it is characterized in that: first hall probe and the second hall probe vertical range are 15cm.
CN 201220259809 2012-06-05 2012-06-05 Energized conductor flaw detection device based on three-dimensional micrometric displacement mobile platform CN202614710U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
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.