JPS5735705A - Optical fiber system surface state measuring device - Google Patents
Optical fiber system surface state measuring deviceInfo
- Publication number
- JPS5735705A JPS5735705A JP11213680A JP11213680A JPS5735705A JP S5735705 A JPS5735705 A JP S5735705A JP 11213680 A JP11213680 A JP 11213680A JP 11213680 A JP11213680 A JP 11213680A JP S5735705 A JPS5735705 A JP S5735705A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- gap
- measured
- displacement meter
- fiber
- 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
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To elevate the measuring accuracy, by providing a contactless type displacement meter on the tip part of an optical fiber having a light projecting element and a photodetecting element, and keeping constant a gap between the surface to be measured, and the tip of the optical fiber. CONSTITUTION:An optical fiber 1 irradiates a surface to be measured A from a projector 2 having a projecting element such as an LED, etc., and leads its reflected ray to a photodetector 3. On the tip of the fiber, for instance, is provided a contactless displacement meter 4 of an air micrometer, an ultrasonic resonance system, an electrostatic type, etc., a gap (l) to the surface to be measured A is detected, a motor is driven in accordance with a difference to a set gap l0, by a gap setting device 7, a difference detector 8 and an amplifier 9, and a position of the fiber 1 is adjusted. An output of the photodetector 3 and an output of the displacement meter 4 are inputted to an operating circuit 10, are compared with a characteristic curve F(l) of the quantity of a reflected ray, which has been provided in advance, and a corrected galss signal is outputted. In this way, the measuring accuracy is elevated by easily controlling a position of the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11213680A JPS5735705A (en) | 1980-08-14 | 1980-08-14 | Optical fiber system surface state measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11213680A JPS5735705A (en) | 1980-08-14 | 1980-08-14 | Optical fiber system surface state measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5735705A true JPS5735705A (en) | 1982-02-26 |
Family
ID=14579108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11213680A Pending JPS5735705A (en) | 1980-08-14 | 1980-08-14 | Optical fiber system surface state measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5735705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61194335A (en) * | 1985-02-25 | 1986-08-28 | Hitachi Ltd | Scanning type surface film analyzing method and apparatus |
-
1980
- 1980-08-14 JP JP11213680A patent/JPS5735705A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61194335A (en) * | 1985-02-25 | 1986-08-28 | Hitachi Ltd | Scanning type surface film analyzing method and apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0638060B2 (en) | Optical temperature measuring device using fiber | |
| US4088411A (en) | Length measurement apparatus for continuously advancing articles | |
| DE50015209D1 (en) | Optical position measuring device | |
| JPS6465460A (en) | Space filter type speed measuring instrument | |
| EP0186802A3 (en) | Optical measurement device | |
| DE69314829D1 (en) | Measuring the curvature of a surface | |
| JPS5735705A (en) | Optical fiber system surface state measuring device | |
| US4607955A (en) | Stock consistency transmitter | |
| JPS60501125A (en) | Method and device for measuring suspended solids content in a fluid medium | |
| JPS5796203A (en) | Contactless displacement detector employing optical fiber | |
| JPS5760239A (en) | Pressure sensor | |
| JPS6461622A (en) | Temperature measuring instrument | |
| JPS56103319A (en) | Universal photosensor and sensing system | |
| FR2410809A1 (en) | Opto-electronic device for measurement of velocity or acceleration - transmits signal via optical fibre to sensor reflecting beam back to detector with error correction feedback loop | |
| JPS5630724A (en) | Inspecting device of substrate surface | |
| SU570818A1 (en) | Device for measuring dust concentration in the air | |
| JPS57108702A (en) | Displacement meter | |
| JPS5720603A (en) | Detector for plate width using laser | |
| SU1631496A1 (en) | Optical displacement sensor | |
| SU696285A1 (en) | Automatic collimator | |
| SU449235A1 (en) | Optical displacement meter | |
| JPS5550105A (en) | Moving distance meter for movable body | |
| JPS5690227A (en) | Optical fiber temperature detector | |
| RU2019818C1 (en) | Material linear density transducer | |
| JPS576342A (en) | Detector for state of road surface |