CN2123751U - High-precision differential transformer displacement sensor - Google Patents
High-precision differential transformer displacement sensor Download PDFInfo
- Publication number
- CN2123751U CN2123751U CN 91228402 CN91228402U CN2123751U CN 2123751 U CN2123751 U CN 2123751U CN 91228402 CN91228402 CN 91228402 CN 91228402 U CN91228402 U CN 91228402U CN 2123751 U CN2123751 U CN 2123751U
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- China
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- iron core
- differential transformer
- sensor
- coil
- displacement sensor
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Abstract
The utility model provides a high-precision differential transformer displacement sensor which is composed of the critical pieces of a cable, a binding post, a coil curl, an iron core, a casing and a measuring rod. One end of the sensor boning rod is connected with the measured object and the other end is connected with the iron core. The sensor adopts the totally-enclosed magnetic screen to increase the anti-interference ability to ensure the accuracy and the reliability of the measuring values.
Description
The utility model relates to a kind of high precision differential transformer displace.
Though differential transformer displace early at home and abroad is used widely, yet the best linearity of product of developed countries such as present the U.S. and Britain Ri Defa is 0.1%, and its volume is also big, therefore, does not satisfy the requirement in the high field of ask for something precision.
By development for many years, the solution of our success to be badly in need of volume in many measuring systems little, measurement range is big, the displacement transducer of the high and good reliability of precision.
The purpose of this utility model provides a kind of high precision differential transformer displace, and it not only gets the structural design of sensor rationally, and has improved measuring accuracy.
Invention is to realize like this, in the differential transformer displace structure, we carry out preferably the coiling of coil, the block board thickness of coil former and the length that can wind the line, and given much attention to the mutual coupling of parameter between the structural design of sensor and the support circuit, thereby linear sensor and asymmetry problem have been solved, the linear sensor degree is brought up to less than 0.05%, satisfied request for utilization.
Describe the structure that the utility model proposes in detail below in conjunction with Fig. 1: cable (1), binding post (2), bonnet (3), coil (4), iron core (5), protecgulum (6), housing (7), part such as plug (8) and measuring staff (9) is formed.One end of sensor measuring staff (9) connects on the tested object, the other end links to each other with iron core (5), in a single day measured object is subjected to displacement, then drive iron core (5) and produce relative motion with coil (4) by measuring staff (9), pay limit induced voltage amount to record the displacement size by cable (1) output, sensor adopts totally-enclosed magnetic shielding, by coil (4) and protecgulum (6), bonnet (3) and housing (7), constitute closed magnetic path, produce Magnetic Shielding Effectiveness, thereby improved its interference free performance, guaranteed the precision and the fiduciary level of measured value.
Claims (1)
1, one by cable (1), binding post (2), bonnet (3), coil (4), iron core (5), protecgulum (6), housing (7), the high precision differential transformer displace that part such as plug (8) and measuring staff (9) is formed, it is characterized in that measuring staff (9) one ends connect on the tested object, the other end links to each other with iron core (5), by coil (4), and iron core (5), protecgulum (6), housing (7), the closed magnetic path that bonnet (3) constitutes also produces Magnetic Shielding Effectiveness, to improve precision and the fiduciary level that the sensor interference free performance guarantees measured value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91228402 CN2123751U (en) | 1991-11-15 | 1991-11-15 | High-precision differential transformer displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91228402 CN2123751U (en) | 1991-11-15 | 1991-11-15 | High-precision differential transformer displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2123751U true CN2123751U (en) | 1992-12-02 |
Family
ID=4934098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91228402 Granted CN2123751U (en) | 1991-11-15 | 1991-11-15 | High-precision differential transformer displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2123751U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968338A (en) * | 2010-09-14 | 2011-02-09 | 国营北京曙光电机厂 | LVDT active cell assembly |
| CN102607393A (en) * | 2012-03-15 | 2012-07-25 | 李建国 | Differential transformer type displacement sensor |
| CN103502777A (en) * | 2011-01-07 | 2014-01-08 | 伍德沃德Mpc股份有限公司 | Method and apparatus for a half-bridge variable differential transformer position sensing system |
| CN106482757A (en) * | 2016-08-29 | 2017-03-08 | 吴海滨 | Water pump non-magnet water flow sensing unit |
| CN110092254A (en) * | 2019-04-30 | 2019-08-06 | 上海三菱电梯有限公司 | The performance detecting system and method for the means for correcting of carriage Absolute position measurement system, the means for correcting |
| CN110143501A (en) * | 2019-04-30 | 2019-08-20 | 上海三菱电梯有限公司 | The means for correcting of more ladder carriage calibration positions and the method for testing performance of the means for correcting |
| CN112325757A (en) * | 2020-10-28 | 2021-02-05 | 东风汽车有限公司 | Differential transformer type elastomer sensor |
-
1991
- 1991-11-15 CN CN 91228402 patent/CN2123751U/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968338A (en) * | 2010-09-14 | 2011-02-09 | 国营北京曙光电机厂 | LVDT active cell assembly |
| CN103502777A (en) * | 2011-01-07 | 2014-01-08 | 伍德沃德Mpc股份有限公司 | Method and apparatus for a half-bridge variable differential transformer position sensing system |
| CN103502777B (en) * | 2011-01-07 | 2016-08-17 | 伍德沃德Mpc股份有限公司 | Equipment and method for half-bridge variable differential transformer position sensing system |
| CN102607393A (en) * | 2012-03-15 | 2012-07-25 | 李建国 | Differential transformer type displacement sensor |
| CN106482757A (en) * | 2016-08-29 | 2017-03-08 | 吴海滨 | Water pump non-magnet water flow sensing unit |
| CN110092254A (en) * | 2019-04-30 | 2019-08-06 | 上海三菱电梯有限公司 | The performance detecting system and method for the means for correcting of carriage Absolute position measurement system, the means for correcting |
| CN110143501A (en) * | 2019-04-30 | 2019-08-20 | 上海三菱电梯有限公司 | The means for correcting of more ladder carriage calibration positions and the method for testing performance of the means for correcting |
| CN112325757A (en) * | 2020-10-28 | 2021-02-05 | 东风汽车有限公司 | Differential transformer type elastomer sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Ke Jinlian Designer after: Hu Chuanrong Designer before: Hu Chuanrong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: HU ZHUANRONG TO: KE JINLIAN; HU ZHUANRONG |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |