CN102680568B - Novel eddy-current sensor probe - Google Patents
Novel eddy-current sensor probe Download PDFInfo
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- CN102680568B CN102680568B CN201210099771.1A CN201210099771A CN102680568B CN 102680568 B CN102680568 B CN 102680568B CN 201210099771 A CN201210099771 A CN 201210099771A CN 102680568 B CN102680568 B CN 102680568B
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- current sensor
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- metal cylinder
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Abstract
The invention relates to a novel eddy-current sensor probe which comprises a metal cylindrical conductor and a saddle-shaped probe. The saddle-shaped probe comprises a square shell, a signal line and excitation coils. Two base chucks are disposed on two sides of the bottom of the shell respectively. A detecting coil is disposed on the upper portion of each base chuck. Two detecting coils which are in series connection are disposed between the detecting coils on the upper portions of the base chucks. Two excitation coils are disposed on the upper portions of the detecting coils. The signal line is disposed between the two excitation coils. The novel eddy-current sensor probe is advanced in circuit design and manufacturing process, reliable in performance and stable in operation, and can detect broken strands of non-ferromagnetic aluminum stranded conductors well.
Description
Technical field
The present invention relates to a kind of eddy current testing instrument, and in particular to a kind of Novel eddy-current sensor probe.
Background technology
At present, widely, e.g., the spark plug in terms of auto industry is detected detecting instrument application, security component
Independent detection；Composite detection and immersion and Scanning Detction in terms of aircraft industry；Wheel in terms of railway and
Axletree is detected；Weld seam detection, multichannel defects detection and wall thickness detection in terms of power plant；Casting in terms of metallurgical industry
Detection；Rail, steel bar and Tube heating furnace in terms of steel mill；Complicated applications in terms of composite, such as composite, powder
Metallurgy, connection joint, the stranded of power transmission line, material character etc. are detected.In the stranded test of non-ferromagnetic aluminum stranded conductor is detected, need
Novel high-quality sensor probe, the good quality sensor probe of this structure has not yet to see.
The content of the invention
Instant invention overcomes the deficiencies in the prior art, it is proposed that a kind of Novel eddy-current sensor probe, the probe can
Meet input stimulus coil signal frequency scope be 100Hz～200kHz, probe output signal to noise ratio snr >=50dB, work
Skill is advanced, dependable performance, working stability.
The technical scheme is that：A kind of Novel eddy-current sensor probe, including metal cylinder conductor and the shape of a saddle
Probe, the shape of a saddle probe includes shell, holding wire and excitation coil, and the shell is curved, in the bottom of the shell
Two base chucks are respectively provided on two sides with, a detection coil are respectively provided with described two base chuck tops, described two
Two detection coils being cascaded are provided between detection coil, on the top of the detection coil two excitations are provided with
Coil, is provided with a holding wire between two excitation coils.
The shape of a saddle probe is curved.
The quantity of the shape of a saddle probe is four, and the axial direction along metal cylinder conductor is equidistantly spaced from, its arrangement side
Method along metal cylinder conductors cross for vision from the point of view of, symmetrically arrange along cross-sectional circumferential, detection range covers complete
The cross section circumference of portion's metal cylinder conductor.
The excitation coil signal frequency range is 100Hz～200kHz.
The present invention has the advantages that：
1) present invention can well detect that non-ferromagnetic aluminum stranded conductor is stranded；
2) circuit design of the present invention and manufacturing process are advanced, dependable performance, working stability；
3) signal to noise ratio of the present invention is high, and defect resolution capability is strong；
4) present system configuration simple and flexible, to reach more multichannel requirement；
5) reliability of the present invention is high, easy to maintenance；
6) small volume of the present invention, lightweight, compact conformation.
Description of the drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the main view mounting structure schematic diagram of the present invention.
Fig. 2 is the shape of a saddle probe appearance schematic diagram of the present invention.
Fig. 3 is that the shape of a saddle of the present invention is popped one's head in the transversal facial vision schematic diagram of metal cylinder conductor.
Fig. 4 is that the shape of a saddle of the present invention is popped one's head in the axial arrangement schematic diagram of metal cylinder conductor.
Fig. 5 is the shape of a saddle sonde configuration schematic diagram of the present invention.
Fig. 6 is the shape of a saddle probe Inside coil overlooking the structure diagram of the present invention.
In figure, 1, metal cylinder conductor；2nd, detection coil；3rd, excitation coil；4th, holding wire；5th, shape of a saddle probe；6、
Shell；7th, base chuck.
Specific embodiment
Further illustrate below in conjunction with accompanying drawing, not limit scope involved in the present invention.
Referring to shown in Fig. 1 to Fig. 6, the present invention includes metal cylinder conductor 1 and shape of a saddle probe 5, and the shape of a saddle is visited
5 include shell 6, holding wire 4 and excitation coil 3, and the shell 6 is curved, is respectively equipped with the two bottom sides of the shell 6
Two base chucks 7, base chuck 7 is used to fix shape of a saddle probe 5, and on described two tops of base chuck 7 one is respectively provided with
Detection coil 2, is provided with two detection coils 2 being cascaded, detection coil 2 between described two detection coils 2
Four are had, on the top of detection coil two excitation coils 3 are provided with, a holding wire is provided between two excitation coils 3
4.The shape of a saddle probe 5 is curved.The quantity of the shape of a saddle probe 5 is four, along axial direction of metal cylinder conductor 1 etc.
Arranged for interval, its method for arranging along the cross section of metal cylinder conductor 1 for vision from the point of view of, along cross-sectional circumferential symmetrically cloth
Put, then, detection range covers whole cross section circumferences of metal cylinder conductor 1.Circuit design of the present invention and manufacturing process elder generation
Enter, dependable performance, working stability.The present invention can well detect that non-ferromagnetic aluminum stranded conductor is stranded.
Claims (3)
1. a kind of eddy current sensor is popped one's head in, it is characterised in that：Including metal cylinder conductor and shape of a saddle probe, the shape of a saddle
Probe includes shell, holding wire and excitation coil, and the shell is curved, and in the two bottom sides of the shell two bottoms are respectively provided with
Seat chuck, in the base chuck top detection coil is provided with, and four detection coils are cascaded, in the inspection
The top of test coil is provided with two excitation coils altogether, and a holding wire is provided between two excitation coils.
2. eddy current sensor according to claim 1 is popped one's head in, it is characterised in that：The quantity of the shape of a saddle probe is four
Individual, the axial direction along metal cylinder conductor is equidistantly spaced from, its method for arranging from the point of view of metal cylinder conductors cross, along
Cross-sectional circumferential symmetrically arranges that detection range covers the cross section circumference of whole metal cylinder conductors.
3. eddy current sensor according to claim 2 is popped one's head in, it is characterised in that：The excitation coil signal frequency range is
100Hz～200kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099771.1A CN102680568B (en) | 2012-04-05 | 2012-04-05 | Novel eddy-current sensor probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099771.1A CN102680568B (en) | 2012-04-05 | 2012-04-05 | Novel eddy-current sensor probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102680568A CN102680568A (en) | 2012-09-19 |
| CN102680568B true CN102680568B (en) | 2017-04-12 |
Family
ID=46812817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210099771.1A Active CN102680568B (en) | 2012-04-05 | 2012-04-05 | Novel eddy-current sensor probe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102680568B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868986B (en) * | 2012-12-13 | 2017-06-16 | 上海海事大学 | The eddy current probe and its detection method of a kind of metallic conduit defect in inner surface |
| CN105044201A (en) * | 2015-07-17 | 2015-11-11 | 国家电网公司 | Saddle-shaped open vortex detection device and vortex detection method |
| CN105044202A (en) * | 2015-07-17 | 2015-11-11 | 国家电网公司 | Detection system and method based on saddle-shaped open binary channel vortex probe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813665A (en) * | 2010-04-08 | 2010-08-25 | 北京航空航天大学 | Electric eddy current probe adopting pair tube connection |
| CN201724927U (en) * | 2010-04-08 | 2011-01-26 | 北京航空航天大学 | Eddy current probe adopting geminate transistor connection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100819801B1 (en) * | 2006-03-03 | 2008-04-07 | 삼성테크윈 주식회사 | Automatic shooting mechanism and sentry robot having the same |
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2012
- 2012-04-05 CN CN201210099771.1A patent/CN102680568B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813665A (en) * | 2010-04-08 | 2010-08-25 | 北京航空航天大学 | Electric eddy current probe adopting pair tube connection |
| CN201724927U (en) * | 2010-04-08 | 2011-01-26 | 北京航空航天大学 | Eddy current probe adopting geminate transistor connection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102680568A (en) | 2012-09-19 |
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Effective date of registration: 20170222 Address after: 703 room No. 420 Zhonghua Road, Qinhuai District, Jiangsu, Nanjing, China Applicant after: NANJING BOKENA AUTOMATION SYSTEM CO., LTD. Address before: 718 room No. 420 Zhonghua Road, Qinhuai District, Jiangsu, Nanjing, China Applicant before: Nanjing Ruiqi Detecting Instrument Co., Ltd. |
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Addressee: Nanjing Ruiqi Detecting Instrument Co., Ltd. Document name: Notification of Passing Examination on Formalities |
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