JPS6428519A - Method of measuring physical quantity - Google Patents
Method of measuring physical quantityInfo
- Publication number
- JPS6428519A JPS6428519A JP18454187A JP18454187A JPS6428519A JP S6428519 A JPS6428519 A JP S6428519A JP 18454187 A JP18454187 A JP 18454187A JP 18454187 A JP18454187 A JP 18454187A JP S6428519 A JPS6428519 A JP S6428519A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- flywheel
- end surface
- moire fringes
- image
- 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.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
PURPOSE:To measure physical quantities of an object such as length, angle, distortion, etc. with ease and high accuracy, by confronting one end surfaces of multi-core optical fibers which are spaced a small distance from each other in a movable manner, thereby to observe moire fringes generated at the other end surface of the fiber. CONSTITUTION:In the case where the rotating angles of a flywheel 10 is desired to be measured, an image fiber 2 is fixed to the flywheel 10 while the flywheel 10 is illuminated by a light source 1. Another image fiber 3 is confrontingly provided several mum away from one end surface of the image fiber 2. Many cores are aligned on the end surfaces of the fibers 2 and 3. When the fiber 2 is rotated in parallel to the one end surface of the other fiber 3, moire fringes are formed, which can be observed at the projecting end surface of the fiber 3. Therefore, in the above-described construction, if the flywheel 10 is rotated, the moire fringes at the end surface of the fiber 3 are moved, and accordingly, by measuring the amount of the movement of the moire fringes on a screen of a television monitor 6 or automatically detecting the amount of the movement by an image processor 7, the rotating angles of the flywheel 10 can be measured in a simple arrangement with high accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18454187A JPS6428519A (en) | 1987-07-23 | 1987-07-23 | Method of measuring physical quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18454187A JPS6428519A (en) | 1987-07-23 | 1987-07-23 | Method of measuring physical quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6428519A true JPS6428519A (en) | 1989-01-31 |
| JPH0583125B2 JPH0583125B2 (en) | 1993-11-24 |
Family
ID=16155010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18454187A Granted JPS6428519A (en) | 1987-07-23 | 1987-07-23 | Method of measuring physical quantity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002273A1 (en) * | 1993-07-06 | 1995-01-19 | British Nuclear Fuels Plc | A rotor for an energy storage and conversion apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843654U (en) * | 1971-09-25 | 1973-06-06 | ||
| JPS58102105A (en) * | 1981-12-14 | 1983-06-17 | Hitachi Ltd | Optical fiber sensor |
-
1987
- 1987-07-23 JP JP18454187A patent/JPS6428519A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843654U (en) * | 1971-09-25 | 1973-06-06 | ||
| JPS58102105A (en) * | 1981-12-14 | 1983-06-17 | Hitachi Ltd | Optical fiber sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002273A1 (en) * | 1993-07-06 | 1995-01-19 | British Nuclear Fuels Plc | A rotor for an energy storage and conversion apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0583125B2 (en) | 1993-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |