CN201138193Y - Optical grating micro-displacement pickup - Google Patents
Optical grating micro-displacement pickup Download PDFInfo
- Publication number
- CN201138193Y CN201138193Y CNU2008200616437U CN200820061643U CN201138193Y CN 201138193 Y CN201138193 Y CN 201138193Y CN U2008200616437 U CNU2008200616437 U CN U2008200616437U CN 200820061643 U CN200820061643 U CN 200820061643U CN 201138193 Y CN201138193 Y CN 201138193Y
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- grating
- main body
- sounding rod
- arc
- orienting lug
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- Expired - Fee Related
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Abstract
The utility model discloses a grating micro-displacement transducer, which comprises a measuring staff (1), a guide sleeve (2), a main body (3), a tension spring (5), a measuring seat (8), a photoelectric board (9), an indicating grating (10), a ruler grating (11), a circuit board (12), an encloser (13) and a positioning device. The positioning device consists of a guide pin (4) and an arciform guide block (7). The guide pin (4) is arranged on the measuring staff (1). The arciform guide block (7) is arranged on the main body (3) through a fastener. Both ends of the guide pin (4) protrude beyond the measuring staff (1), and the measuring staff (1) moves on the plate of the arciform guide block (7), thus limiting the measuring staff from rotating. The tension spring (5) is arranged in the cavity of the arciform guide block (7). The grating micro-displacement transducer is compact in structure, is small in volume and measures precisely.
Description
Technical field
The utility model relates to a kind of displacement transducer, particularly relates to a kind of grating micro-displacement sensor, and it can measure 0.1 micron-sized measured body.
Background technology
The grating micro-displacement sensor is as a kind of precision measurement apparatus, guiding, setting element, director element all is installed in its inside sounding rod can only be moved along a direction, and the general director element that adopts is a guide pin bushing; Setting element then limits the rotation of sounding rod, makes the scale grating in one plane move all the time with respect to main body, thereby guarantees the accuracy of measurement.The setting element that existing grating micro-displacement sensor is adopted is made of guide pole, guide way and shift fork usually, guide pole is connected and is positioned at a side of sounding rod with sounding rod by shift fork, when sounding rod moves, guide pole slides on guide way, thereby reaches the purpose that the restriction sounding rod rotates.The grating micro-displacement sensor of this structure be a guide pole and a side that is installed in sounding rod because setting element adopts, so volume is bigger, can't use in some measure field.
Summary of the invention
The purpose of this utility model is to provide that a kind of volume is little, the grating micro-displacement sensor of compact conformation.
For achieving the above object, the solution that the utility model adopts is: this grating micro-displacement sensor comprises sounding rod, guide pin bushing, main body, extension spring, measuring seat, electro-optical package, indication grating, the scale grating, circuit board, shell and setting element, wherein scale grating and sounding rod link together, indication grating and measuring seat link together and are fixed on the main body, two electro-optical packages are installed in respectively on measuring seat and the main body, circuit board places shell, described setting element is made of guide finger and arc orienting lug, guide finger radially is installed in the hole of sounding rod, arc orienting lug is connected with main body by securing member, the two ends of guide finger are stretched out sounding rod and are slidably located on the plane of arc orienting lug, extension spring is positioned at the cavity of orienting lug, its end is connected on the extension spring pin on the sounding rod, and the other end is connected on the extension spring pin on the main body.
The utility model is work like this: when the traverse measurement bar is measured, the scale grating moves with sounding rod, the sounding rod of guide finger and arc orienting lug restriction simultaneously rotates, make the scale grating in one plane move all the time with respect to main body, and and indication grating produce and to relatively move and form Morie fringe, convert the mechanical motion of optical grating pair to electric signal by electro-optical package then, after circuit board is handled the needed electric signal of back output user.
The utility model is owing to adopted guide finger and the locating device of arc orienting lug formation, and guide finger is installed on the sounding rod, extension spring is installed in the cavity of arc orienting lug, circuit board places in the shell, therefore the utlity model has compact conformation, volume is little, measurement is accurate, advantage such as easy to use, has remedied the defective that existing grating micro-displacement sensor can't use greatly because of volume in some measure field.
Description of drawings
Fig. 1 is a cut-open view of the present utility model.
Fig. 2 is the M-M zoomed-in view of Fig. 1.
Among the figure: 1-sounding rod 2-guide pin bushing 3-main body 4-guide finger 5-extension spring 6-hangs the arc orienting lug 8-of spring pin 7-measuring seat 9-electro-optical package 10-indication grating 11-scale grating 12-circuit board 13-shell
Embodiment
As shown in Figure 1 and Figure 2, the utility model is made of sounding rod 1, guide pin bushing 2, main body 3, guide finger 4, extension spring 5, extension spring pin 6, arc orienting lug 7, measuring seat 8, electro-optical package 9, indication grating 10, scale grating 11, circuit board 12 and shell 13, scale grating 11 bonds together with sounding rod 1, indication grating 10 bonds together with measuring seat 8 and is fixed on the main body 3, electro-optical package 9 is two, be installed on respectively on measuring seat 8 and the main body 3, circuit board 12 places shell 13, and signal wire is pulled out from afterbody.The locating device that the utility model adopts comprises guide finger 4 and arc orienting lug 7, guide finger 4 radially is installed in the hole of sounding rod 1, stretch out from sounding rod at its two ends, arc orienting lug 7 by screw retention on main body 3, extension spring 5 is positioned at the cavity of arc orienting lug 7, its end is connected on the extension spring pin 6 on the sounding rod 1, and the other end is connected on the extension spring pin on the main body 3.Move on the plane of arc orienting lug 7 both sides when sounding rod 1 moves at the two ends of stretching out sounding rod 1 of guide finger 4.Regulate the position of arc orienting lug 7 during for the ease of installation, the both sides of arc orienting lug 7 are cooperated with guide finger 4 better for the plane that guide finger 4 slides, the utility model has adopted two kinds of screws, as shown in Figure 2, a kind of lower end of screw is sunk in the main body 3 arc orienting lug 7 is connected with main body 3, the lower surface of another kind of screw just in time is against on the plane of main body 3, just can regulate the position of arc orienting lug 7 by regulating this screw like this.
Simple, the compact in design of the positioning device structure that is made of guide finger 4 and arc orienting lug 7 that the utility model adopted has successfully realized the combination of moving-member and positioning element, makes the miniaturization of grating micro-displacement sensor become reality.
Claims (1)
1. grating micro-displacement sensor, comprise sounding rod (1), guide pin bushing (2), main body (3), extension spring (5), measuring seat (8), electro-optical package (9), indication grating (10), scale grating (11), circuit board (12), shell (13) and setting element, wherein scale grating (11) links together with sounding rod (1), indication grating (10) links together with measuring seat (8) and is fixed on the main body (3), two electro-optical packages (9) are installed in respectively on measuring seat (8) and the main body (3), circuit board (12) places shell (13), it is characterized in that: setting element comprises guide finger (4) and arc orienting lug (7), guide finger (4) radially is installed in the hole of sounding rod (1), arc orienting lug (7) is connected with main body (3) by securing member, the two ends of guide finger (4) are stretched out sounding rod (1) and are slidably located on the plane of arc orienting lug (7), extension spring (5) is positioned at the cavity of arc orienting lug (7), its end is connected on the extension spring pin (6) on the sounding rod (1), and the other end is connected on the extension spring pin on the main body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200616437U CN201138193Y (en) | 2008-01-07 | 2008-01-07 | Optical grating micro-displacement pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200616437U CN201138193Y (en) | 2008-01-07 | 2008-01-07 | Optical grating micro-displacement pickup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138193Y true CN201138193Y (en) | 2008-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200616437U Expired - Fee Related CN201138193Y (en) | 2008-01-07 | 2008-01-07 | Optical grating micro-displacement pickup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138193Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979959A (en) * | 2010-11-02 | 2011-02-23 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric type micro-displacement measuring device |
| CN102679884A (en) * | 2012-05-09 | 2012-09-19 | 成都远恒精密测控技术有限公司 | Explosion-proof optical grating displacement sensor |
| CN103363903A (en) * | 2012-04-10 | 2013-10-23 | 同方威视技术股份有限公司 | Sensor structure and optical-fiber grating sensor including the sensor structure |
| CN104134583A (en) * | 2013-08-19 | 2014-11-05 | 国家电网公司 | Circuit breaker operation mechanism and positioning assembly device of displacement sensor for circuit breaker operation mechanism |
| CN104236599A (en) * | 2014-09-19 | 2014-12-24 | 西安交通大学 | One-dimensional raster scanning measuring head |
| CN105138060A (en) * | 2015-07-27 | 2015-12-09 | 中国科学院光电技术研究所 | Rocker with grating sensor |
-
2008
- 2008-01-07 CN CNU2008200616437U patent/CN201138193Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979959A (en) * | 2010-11-02 | 2011-02-23 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric type micro-displacement measuring device |
| CN103363903A (en) * | 2012-04-10 | 2013-10-23 | 同方威视技术股份有限公司 | Sensor structure and optical-fiber grating sensor including the sensor structure |
| CN103363903B (en) * | 2012-04-10 | 2017-02-15 | 同方威视技术股份有限公司 | Sensor structure and fiber bragg grating displacement sensor including the sensor structure |
| CN102679884A (en) * | 2012-05-09 | 2012-09-19 | 成都远恒精密测控技术有限公司 | Explosion-proof optical grating displacement sensor |
| CN104134583A (en) * | 2013-08-19 | 2014-11-05 | 国家电网公司 | Circuit breaker operation mechanism and positioning assembly device of displacement sensor for circuit breaker operation mechanism |
| CN104134583B (en) * | 2013-08-19 | 2017-06-09 | 国家电网公司 | The positioning assembling device of breaker operation mechanism and its displacement transducer |
| CN104236599A (en) * | 2014-09-19 | 2014-12-24 | 西安交通大学 | One-dimensional raster scanning measuring head |
| CN104236599B (en) * | 2014-09-19 | 2016-06-08 | 西安交通大学 | A kind of one-dimensional grating scanning feeler |
| CN105138060A (en) * | 2015-07-27 | 2015-12-09 | 中国科学院光电技术研究所 | Rocker with grating sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20120107 |