JPS5381151A - Surface film thickness detector - Google Patents
Surface film thickness detectorInfo
- Publication number
- JPS5381151A JPS5381151A JP15627876A JP15627876A JPS5381151A JP S5381151 A JPS5381151 A JP S5381151A JP 15627876 A JP15627876 A JP 15627876A JP 15627876 A JP15627876 A JP 15627876A JP S5381151 A JPS5381151 A JP S5381151A
- Authority
- JP
- Japan
- Prior art keywords
- film thickness
- surface film
- thickness detector
- test object
- detecting
- 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
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE: To perform the detection of surface film thickness of a continuously moving long-length test object by detecting the Fraunhofer diffracted images of laser light by the minute clearance formed between a fixed shading body and the test object.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15627876A JPS5381151A (en) | 1976-12-27 | 1976-12-27 | Surface film thickness detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15627876A JPS5381151A (en) | 1976-12-27 | 1976-12-27 | Surface film thickness detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5381151A true JPS5381151A (en) | 1978-07-18 |
Family
ID=15624311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15627876A Pending JPS5381151A (en) | 1976-12-27 | 1976-12-27 | Surface film thickness detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5381151A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH047305U (en) * | 1990-05-02 | 1992-01-23 | ||
JPH074924A (en) * | 1991-06-26 | 1995-01-10 | Fumio Tojo | On-line measuring apparatus of sheet thickness |
-
1976
- 1976-12-27 JP JP15627876A patent/JPS5381151A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH047305U (en) * | 1990-05-02 | 1992-01-23 | ||
JPH074924A (en) * | 1991-06-26 | 1995-01-10 | Fumio Tojo | On-line measuring apparatus of sheet thickness |
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