JPS53114456A - Sizing system of optical beam scanning type - Google Patents
Sizing system of optical beam scanning typeInfo
- Publication number
- JPS53114456A JPS53114456A JP2798277A JP2798277A JPS53114456A JP S53114456 A JPS53114456 A JP S53114456A JP 2798277 A JP2798277 A JP 2798277A JP 2798277 A JP2798277 A JP 2798277A JP S53114456 A JPS53114456 A JP S53114456A
- Authority
- JP
- Japan
- Prior art keywords
- optical beam
- beam scanning
- scanning type
- sizing system
- differential operation
- 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
Abstract
PURPOSE: To improve the measuring accuracy without any influence upon the size measurement even if there is any fluctuation in the light source or the background light by subjecting the output signals of a photoelectric converter to secondary differential operation and by measuring the distance between the inflection points of the pulses following the secondary differential operation.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2798277A JPS53114456A (en) | 1977-03-16 | 1977-03-16 | Sizing system of optical beam scanning type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2798277A JPS53114456A (en) | 1977-03-16 | 1977-03-16 | Sizing system of optical beam scanning type |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53114456A true JPS53114456A (en) | 1978-10-05 |
Family
ID=12236048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2798277A Pending JPS53114456A (en) | 1977-03-16 | 1977-03-16 | Sizing system of optical beam scanning type |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53114456A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63175215A (en) * | 1987-01-14 | 1988-07-19 | Matsushita Electric Ind Co Ltd | Method for recognizing gap position of magnetic tape reading head |
-
1977
- 1977-03-16 JP JP2798277A patent/JPS53114456A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63175215A (en) * | 1987-01-14 | 1988-07-19 | Matsushita Electric Ind Co Ltd | Method for recognizing gap position of magnetic tape reading head |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57128810A (en) | Distance measuring device | |
JPS5433083A (en) | Spectrophotometer | |
JPS55119006A (en) | Displacement measuring instrument | |
JPS53114456A (en) | Sizing system of optical beam scanning type | |
JPS5438159A (en) | Distance measurement apparatus | |
JPS5796203A (en) | Contactless displacement detector employing optical fiber | |
JPS5435759A (en) | Measuring method of numerical aperture of optical fibers | |
JPS542700A (en) | Optical fire detector | |
JPS51144254A (en) | Focal distance measurement method of optical lens and its device | |
JPS5694248A (en) | Detector for foreign matter on surface | |
JPS5267384A (en) | Reflectance and transmissivity meter | |
JPS5629116A (en) | Measurement unit for moving distance | |
JPS5269653A (en) | Detector for displacement of scanning beam | |
JPS5362546A (en) | Measuring method and apparatus of propagation characteristics of optical guide | |
JPS53138367A (en) | Optical distance measuring apparatus | |
JPS5320349A (en) | Measuring method for wave length dispersion of photo-fiber | |
JPS5328447A (en) | Measurement of length of optical fiber and device therefor | |
JPS5377659A (en) | Distance detector | |
JPS54130168A (en) | Speed detector | |
JPS53117468A (en) | Laser radar apparatus | |
JPS5425850A (en) | Focus detector | |
JPS5550105A (en) | Moving distance meter for movable body | |
JPS5511606A (en) | Photoelectric conversion device | |
JPS57128813A (en) | Photoelectric type displacement measuring device | |
JPS5374455A (en) | Light reciving position detector |