CN102253113A - Transformer type high-speed signal coupling transmitter - Google Patents
Transformer type high-speed signal coupling transmitter Download PDFInfo
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- CN102253113A CN102253113A CN201110106557XA CN201110106557A CN102253113A CN 102253113 A CN102253113 A CN 102253113A CN 201110106557X A CN201110106557X A CN 201110106557XA CN 201110106557 A CN201110106557 A CN 201110106557A CN 102253113 A CN102253113 A CN 102253113A
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Abstract
The invention discloses a transformer type high-speed signal coupling transmitter. The transformer type high-speed signal coupling transmitter comprises a rotating shaft, a rotor, a stator, a first exciting coil, a first detection coil, a second exciting coil, a second detection coil and at least one point probe, wherein the rotor is arranged on the rotating shaft and rotates around the rotating shaft as a center; the stator is arranged in parallel with the rotor and takes the rotating shaft as a center; the first exciting coil and the first detection coil are arranged on the rotor; the second exciting coil and the second detection coil are arranged on the stator; the at least one point probe is arranged on the rotating shaft and connected with the first exciting coil and the first detection coil on the rotor; and the second exciting coil and the second detection coil on the stator are connected with an eddy current detector. The transformer type high-speed signal coupling transmitter has the advantages that: transformer type coupling is adopted, so loss and distortion degree are low during signal transmission, high-frequency exciting signals are not distorted when transmitted to the exciting coils, and the detected signal are not distorted when transmitted to an instrument; loss is low during information transmission, information can be transmitted without attenuation, and the transfer coefficient is close to 1; and the transformer type high-speed signal coupling transmitter is easy to manufacture, stable and reliable to operate and easy to maintain, and has low price and long service life.
Description
Technical field
The present invention relates to a kind of signal coupling apparatus, specifically relate to a kind of transformer type high speed signal coupling converyer.
Background technology
EDDY CURRENT is a kind of lossless detection method that is based upon on the electromagnetic induction principle basis, it is applicable to conductive material, among we place a conductor in alternating magnetic field, in conductor, just there is induction current to exist, promptly produce eddy current, because conductor self various factors, can cause faradic variation as the variation of conductivity, magnetic permeability, shape, size and defective etc., utilize this phenomenon and declare conductor nature, the status detection method known, be called eddy current detection method.Owing to detect the difference of test specimen shape, detect the difference at position, so the shape of check probe and also be not quite similar near the mode of test specimen.
When adopting rotary probe that test specimen is detected, is there a special problem: how the signal on the dot type probe of rotation is delivered to instrument and gets on? normally adopt signal coupling apparatus to solve this problem in the prior art.Common signal coupling apparatus has following several:
Carbon brush slip-ring formula signal coupling apparatus adopts the signal on the slip ring off-take point probe that rotates synchronously with probe, sends signal to defectoscope by slip ring with dynamic contact of carbon brush again, and these device wearing and tearing are big, thereby serviceable life is not long.
Conducting solution formula signal coupling apparatus is contained in a conducting metal disk on the turning axle, rotates with probe, and the part of rosette is placed in the container that has conducting solution.Though all have charged ion in the aqueous solution of acid, alkali, salt, can be used as conducting solution, bronsted lowry acids and bases bronsted lowry is bigger to corrosion of metal, and salt solusion is preferably inconvenient but use at the scene as conducting solution, safeguards complicated.
Radio formula signal coupling apparatus, the ultimate principle of radio coupling is the same with wireless telephone, be on rotary body, to be installed together with probe, the electronic circuit of this device is owing to will be installed on the rotary body, so need to adopt the integrated circuit of small size, low-power consumption, used dry cell also must be miniature, long-life on the rotary body, thus to electronic component require high, use cost is also high, be difficult for popularizing.
Summary of the invention
Goal of the invention:, the invention provides the transformer type high speed signal coupling converyer of a kind of easy to manufacture, low price and long service life in order to solve the deficiencies in the prior art.
Technical scheme: in order to realize above purpose, a kind of transformer type high speed signal coupling converyer of the present invention, comprise turning axle, be located on this turning axle and with its be the center rotor rotated, be set up in parallel with this rotor and with described turning axle be the center stator, be located at epitrochanterian first drive coil and first magnetic test coil, be located on the stator with corresponding second drive coil in the first drive coil position and and corresponding second magnetic test coil in the first magnetic test coil position and be located at least one probe on the turning axle; Described probe is connected with first magnetic test coil with first drive coil, and described second drive coil and second magnetic test coil link to each other with eddy detecting instrument.
In order to make equipment operation more reliable and more stable, preferably, be provided with projection in the end of the close rotor of turning axle, probe is located on this projection.
Further preferably, be provided with first screw on projection, rotor by this first screw and turning axle mutually
Fixedly connected.
In order to make signal reach best transmission effect, first drive coil and first magnetic test coil are a plurality of, are respectively that centres is located on the described rotor with the turning axle; Second drive coil and second magnetic test coil are respectively that centres is located on the described stator with the turning axle.
In order to make the stator setting more firm, be that the center is provided with the stator terminal pad with the turning axle in the non-side of described stator near rotor cover, described stator is connected and fixed by second screw and stator terminal pad.
In order to make signal keep good transmission effect, the gap between described rotor and the stator is 0.05-20mm.
Beneficial effect: the present invention compared with prior art has the following advantages: owing to adopt the transformer type coupling, the signal slippages is few, degree of distortion is low, and is undistorted when being sent to high-frequency excitation signal on the drive coil, also undistorted when being sent to detected signal on the instrument; Loss is little when transmitting information, can transmit information unattenuatedly, and transfer coefficient approaches 1; The present invention is easy to manufacture, low price, stable and reliable operation, long service life, maintenance are simple.
Description of drawings
Fig. 1 is a cut-open view of the present invention;
Fig. 2 is the right view of rotor of the present invention;
Fig. 3 is the left view of stator of the present invention.
Embodiment
As shown in drawings, transformer type high speed signal coupling converyer of the present invention, comprise turning axle 1, be located on the turning axle 1 and be the collar plate shape rotor 2 of center rotation, be set up in parallel with this rotor 2 and be the collar plate shape stator 3 at center with turning axle 1 with this turning axle 1, turning axle 1 is the cylindric of boring, and its inside can be placed detected pieces and be detected; Turning axle 1 is provided with projection 7 at its place, end near rotor 2, and rotor 2 is fixedly connected with turning axle 1 by first screw 81 that protruding 7 tops and bottom are provided with; Stator 3 non-be that the center is provided with stator terminal pad 9 near the side of 2 of rotors with turning axle 1, stator 3 is connected and fixed with stator terminal pad 9 by second screw 82, the gap between rotor 2 and the stator 3 is 10 mm (between 0.05-20mm all can).
On rotor 2 with turning axle 1 be centres be provided with two first drive coils 41 and first magnetic test coil 51, on stator 3 with turning axle 1 be centres be provided with two with corresponding second drive coil 42 in first drive coil, 41 positions and two and corresponding second magnetic test coil 52 in first magnetic test coil, 51 positions, wherein, second drive coil 42 is connected with eddy detecting instrument 10 with second magnetic test coil 52, and the concentric groove that drive coil and magnetic test coil are provided with by rotor or stator places to be located in the groove on rotor or the stator.
On the top of the projection 7 of turning axle 1 and the bottom with turning axle 1 be the center be provided with two probe 6(symmetrically can be for more than one or 3 and 3), this probe 6 is connected with first drive coil 41 and first magnetic test coil 51, in addition, be provided with excitation winding and measurement winding in the inside of probe 6.
The present invention in use, tested test specimen is put into the boring detection zone of turning axle 1, energized, make rotor 2 and turning axle 1 jointly around tested test specimen rotation, and apply the alternation high-frequency current by second drive coil 42 on 10 pairs of stators 3 of eddy detecting instrument, at this moment, promptly induce the high-frequency signal of same frequency on the rotor 2 with first drive coil 41 of second drive coil, 42 corresponding settings, and it is applied on the excitation winding that probe 6 inside are provided with, the excitation winding of probe 6 inside produces alternating magnetic field, make tested test specimen produce eddy current signal, the measurement winding that probe 6 inside are provided with is sensed eddy current on the tested test specimen and change to be produced electric current and it is delivered on first magnetic test coil 51 on the rotor 2, simultaneously second magnetic test coil 52 with the 51 corresponding settings of first magnetic test coil on the stator 3 is sensed the electric current on first magnetic test coil 51 and is produced sensor current signal and it is delivered in the eddy detecting instrument 10 and handles, thereby finishes signal transduction process.
The present invention adopts the contactless coupling of transformer, the signal slippages is few, degree of distortion is low, undistorted when being sent to pumping signal on the drive coil, also undistorted when being sent to detected signal on the instrument, loss is little when the information of transmission in addition, can transmit information unattenuatedly, transfer coefficient approaches 1, and stable and reliable operation, long service life.
The foregoing description only is explanation technical conceive of the present invention and characteristics, its objective is to allow to be familiar with these those skilled in the art and can to understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalents that spirit has been done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (6)
1. transformer high speed signal coupling converyer, it is characterized in that: comprise turning axle (1), be located at that this turning axle (1) is gone up and be center rotor rotated (2) with it, be set up in parallel with this rotor (2) and be the stator (3) at center with described turning axle (1), be located at first drive coil (41) and first magnetic test coil (51) on the described rotor (2), be located at described stator (3) go up with described first drive coil (41) corresponding second drive coil in position (42) and with described first magnetic test coil (51) corresponding second magnetic test coil in position (52), and be located at least one probe (6) on the described turning axle (1); Described probe (6) is connected with first magnetic test coil (51) with first drive coil (41), and described second drive coil (42) and second magnetic test coil (52) link to each other with eddy detecting instrument (10).
2. a kind of transformer high speed signal coupling converyer according to claim 1, it is characterized in that: the end at the close rotor (2) of described turning axle (1) is provided with projection (7), and described probe (6) is located on this projection (7).
3. a kind of transformer high speed signal coupling converyer according to claim 2, it is characterized in that: described projection (7) is provided with first screw (81), and described rotor (2) is fixedly connected by this first screw (81) and turning axle (1).
4. a kind of transformer high speed signal coupling converyer according to claim 1 is characterized in that:
Described first drive coil (41) and first magnetic test coil (51) are a plurality of, are that centres is located on the described rotor (2) with described turning axle (1) respectively; Described second drive coil (42) and second magnetic test coil (52) are that centres is located on the described stator (3) with described turning axle (1) respectively.
5. a kind of transformer high speed signal coupling converyer according to claim 1, it is characterized in that: be provided with stator terminal pad (9) in described stator (3) side, described stator (3) is connected and fixed by second screw (82) and this stator terminal pad (9).
6. a kind of transformer high speed signal coupling converyer according to claim 1, it is characterized in that: the gap between described rotor (2) and the stator (3) is 0.05-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110106557XA CN102253113A (en) | 2011-04-27 | 2011-04-27 | Transformer type high-speed signal coupling transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110106557XA CN102253113A (en) | 2011-04-27 | 2011-04-27 | Transformer type high-speed signal coupling transmitter |
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| Publication Number | Publication Date |
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| CN102253113A true CN102253113A (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110106557XA Pending CN102253113A (en) | 2011-04-27 | 2011-04-27 | Transformer type high-speed signal coupling transmitter |
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| CN (1) | CN102253113A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373371A (en) * | 2016-08-07 | 2017-02-01 | 深圳博华创新技术有限公司 | Rotary capacitor type coupling element and application thereof to detection of intravascular ultrasound machine, detection of high-speed shaft and data acquisition of vibration part |
| CN108027253A (en) * | 2015-09-30 | 2018-05-11 | 日本航空电子工业株式会社 | Brushless resovler and rotation angle detection apparatus |
| CN108351091A (en) * | 2015-10-26 | 2018-07-31 | 欧司朗股份有限公司 | Conversion equipment and irradiation apparatus with this conversion equipment |
| CN109115866A (en) * | 2018-07-18 | 2019-01-01 | 清华大学 | Rotate in a circumferential direction point type eddy current sensor and detection method |
| CN109115867A (en) * | 2018-07-18 | 2019-01-01 | 清华大学 | Plane Rotation Eddy Current Testing Transducer and detection method |
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| US4355281A (en) * | 1978-06-14 | 1982-10-19 | Republic Steel Corporation | Eddy current surface flaw detection employing signal correlation |
| CN2355330Y (en) * | 1998-10-15 | 1999-12-22 | 许新雄 | Apparatus for coupling signals of metal eddy current test |
| CN2391203Y (en) * | 1999-08-06 | 2000-08-09 | 北京企信科技集团 | Rotary eddy current detecting probe |
| CN1584583A (en) * | 2003-08-18 | 2005-02-23 | 林俊明 | Rapid-speed metal piping, bar and wire stock on-line defect detecting method and detector thereof |
| CN1616959A (en) * | 2004-02-10 | 2005-05-18 | 何辅云 | Detection method and device without blind area for large calibre steel pipe without changing probe |
| CN2738250Y (en) * | 2004-10-14 | 2005-11-02 | 郑州士奇测控技术有限公司 | Petroleum drilling rod screw-thread magnetic leakage flaw detector |
| CN202120745U (en) * | 2011-04-27 | 2012-01-18 | 苏州龙骏无损检测设备有限公司 | Transformer high-speed signal coupling and transmitting device |
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2011
- 2011-04-27 CN CN201110106557XA patent/CN102253113A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4355281A (en) * | 1978-06-14 | 1982-10-19 | Republic Steel Corporation | Eddy current surface flaw detection employing signal correlation |
| CN2355330Y (en) * | 1998-10-15 | 1999-12-22 | 许新雄 | Apparatus for coupling signals of metal eddy current test |
| CN2391203Y (en) * | 1999-08-06 | 2000-08-09 | 北京企信科技集团 | Rotary eddy current detecting probe |
| CN1584583A (en) * | 2003-08-18 | 2005-02-23 | 林俊明 | Rapid-speed metal piping, bar and wire stock on-line defect detecting method and detector thereof |
| CN1616959A (en) * | 2004-02-10 | 2005-05-18 | 何辅云 | Detection method and device without blind area for large calibre steel pipe without changing probe |
| CN2738250Y (en) * | 2004-10-14 | 2005-11-02 | 郑州士奇测控技术有限公司 | Petroleum drilling rod screw-thread magnetic leakage flaw detector |
| CN202120745U (en) * | 2011-04-27 | 2012-01-18 | 苏州龙骏无损检测设备有限公司 | Transformer high-speed signal coupling and transmitting device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108027253A (en) * | 2015-09-30 | 2018-05-11 | 日本航空电子工业株式会社 | Brushless resovler and rotation angle detection apparatus |
| US10753771B2 (en) | 2015-09-30 | 2020-08-25 | Honda Motor Co., Ltd. | Brushless resolver and rotation-angle detection device |
| CN108027253B (en) * | 2015-09-30 | 2021-03-16 | 本田技研工业株式会社 | Brushless resolver and rotation angle detection device |
| CN108351091A (en) * | 2015-10-26 | 2018-07-31 | 欧司朗股份有限公司 | Conversion equipment and irradiation apparatus with this conversion equipment |
| CN108351091B (en) * | 2015-10-26 | 2020-01-10 | 欧司朗股份有限公司 | Conversion device and irradiation device having such a conversion device |
| US10788196B2 (en) | 2015-10-26 | 2020-09-29 | Osram Beteiligungsverwaltung Gmbh | Converter device and irradiation device having such a converter device |
| CN106373371A (en) * | 2016-08-07 | 2017-02-01 | 深圳博华创新技术有限公司 | Rotary capacitor type coupling element and application thereof to detection of intravascular ultrasound machine, detection of high-speed shaft and data acquisition of vibration part |
| CN109115866A (en) * | 2018-07-18 | 2019-01-01 | 清华大学 | Rotate in a circumferential direction point type eddy current sensor and detection method |
| CN109115867A (en) * | 2018-07-18 | 2019-01-01 | 清华大学 | Plane Rotation Eddy Current Testing Transducer and detection method |
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Application publication date: 20111123 |