JPS57523A - Optical vernier type measuring instrument - Google Patents
Optical vernier type measuring instrumentInfo
- Publication number
- JPS57523A JPS57523A JP7483380A JP7483380A JPS57523A JP S57523 A JPS57523 A JP S57523A JP 7483380 A JP7483380 A JP 7483380A JP 7483380 A JP7483380 A JP 7483380A JP S57523 A JPS57523 A JP S57523A
- Authority
- JP
- Japan
- Prior art keywords
- optical fibers
- wavelengths
- normal scale
- pieces
- scale part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
PURPOSE:To obtain high measurement accuracy with less number of optical fibers by providing a vernier part consisting of n+ or -1 pieces of optical fibers relatively movably to a normal scale part consisting of n pieces of regions reflecting to specific wavelengths. CONSTITUTION:The white light from a white light source 16 is allowed to arrive at an optical branching and combining device 14 as well as a branching filter 17 connected to a decoder 20, a binary coding circuit 19 and a photodetector array 18, by way of a half mirror 15. Four pieces of optical fibers disposed at constant intervals to a vernier part 12 are connected to the device 14, and a normal scale part 11 consisting of mirrors M1-Mp which reflect respectively different wavelengths lambda1- lambdap and are of the equally divided length of the length slightly different from the intervals of the optical fibers 13 is opposed to the vernier part 12. When the normal scale part 11 moves vertically, the combinations of the wavelengths reflected from the mirrors and inputting to the fibers 13 change, and said combinations correspond to the rates of displacement of the normal scale part 11; therefore, the rates of displacement are measured by detecting the combination of the wavelengths with the branching filter 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7483380A JPS57523A (en) | 1980-06-03 | 1980-06-03 | Optical vernier type measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7483380A JPS57523A (en) | 1980-06-03 | 1980-06-03 | Optical vernier type measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57523A true JPS57523A (en) | 1982-01-05 |
Family
ID=13558729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7483380A Pending JPS57523A (en) | 1980-06-03 | 1980-06-03 | Optical vernier type measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57523A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141315A (en) * | 1987-11-27 | 1989-06-02 | Agency Of Ind Science & Technol | Displacement detecting device |
| CN111076672A (en) * | 2019-12-31 | 2020-04-28 | 黑龙江科技大学 | Mining hydraulic support compression amount monitoring device |
-
1980
- 1980-06-03 JP JP7483380A patent/JPS57523A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141315A (en) * | 1987-11-27 | 1989-06-02 | Agency Of Ind Science & Technol | Displacement detecting device |
| CN111076672A (en) * | 2019-12-31 | 2020-04-28 | 黑龙江科技大学 | Mining hydraulic support compression amount monitoring device |
| CN111076672B (en) * | 2019-12-31 | 2022-04-15 | 黑龙江科技大学 | Mining hydraulic support compression amount monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0311144A3 (en) | Optical instrument for measuring displacement | |
| ATE27489T1 (en) | FIBER OPTIC MEASUREMENT DEVICE. | |
| DE3474362D1 (en) | Displacement measuring apparatus and method | |
| JPS646706A (en) | Michelson optical fiber interferometer | |
| JPS57523A (en) | Optical vernier type measuring instrument | |
| DE3775040D1 (en) | DEVICE FOR MEASURING THE REFLECTION PROPERTIES OF EYE GLASSES. | |
| JPS5786710A (en) | Measuring device for three-dimensional configuration | |
| JPS55142220A (en) | Device for measuring wavelength | |
| ES8608678A1 (en) | Diaphragm deflection sensor for fused silica diaphragm module | |
| SU922538A1 (en) | Device for remote measuring of temperature | |
| GB2199404A (en) | Refractive index measuring device | |
| JPS6423126A (en) | Multiple light source polarization analyzing method | |
| JPS5740658A (en) | Measuring apparatus for electric field | |
| SU1173177A1 (en) | Device for measuring object displacement and index of transparent media refraction | |
| JPS5756777A (en) | Method for measuring time difference of light propagation | |
| SU1254295A1 (en) | Device for measuring linear shifts | |
| JPS6449942A (en) | Physical property measuring instrument for liquid | |
| SU1642233A1 (en) | Device for measuring linear displacement | |
| SU1492216A1 (en) | Optical transducer for measuring displacements | |
| JPS57194324A (en) | Optical temperature measuring device | |
| SU885854A1 (en) | Device for checking non-astigmatic spectacle lenses | |
| JPS533283A (en) | Referactive index distribution form measurement device | |
| SU470746A1 (en) | Digital Electrical Instrument | |
| SU938000A1 (en) | Device for measuring thickness | |
| SU844996A1 (en) | Device for measuring displacements |