JPS5648504A - Length measuring device - Google Patents
Length measuring deviceInfo
- Publication number
- JPS5648504A JPS5648504A JP12663179A JP12663179A JPS5648504A JP S5648504 A JPS5648504 A JP S5648504A JP 12663179 A JP12663179 A JP 12663179A JP 12663179 A JP12663179 A JP 12663179A JP S5648504 A JPS5648504 A JP S5648504A
- Authority
- JP
- Japan
- Prior art keywords
- mark
- detected
- detector
- zero
- read out
- 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 eliminate the error caused by the shift of attachment for the slip mark of the wheel or the like, by reading the main point of the mark through the zero- cross system using the differential output between the two photoelectric transducers.
CONSTITUTION: A marking of a sharp form is given to the travelling long-sized material 1 with every distance nearly equal to the reference distance L by the marking device 2. The marks put continuously on the surface of the material 1 are detected by the mark detector 3, and the one-preceding mark position is detected by the image pickup device 4 and in synchronization with the detection of the mark. The fixed point of the mark formed through the lens system 6 is read out in the detector 3 by two photocells S1 and S2 and through the zero-cross system. In this connection, the central position can be detected in a high accuracy by reducing extremely the gap between the S1 and S2. And when the center of the mark is detected by the detector 3, the one-preceding mark is read out through the device 4 which is installed at the point distant away by a prescribed distance.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12663179A JPS5648504A (en) | 1979-09-28 | 1979-09-28 | Length measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12663179A JPS5648504A (en) | 1979-09-28 | 1979-09-28 | Length measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5648504A true JPS5648504A (en) | 1981-05-01 |
Family
ID=14939962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12663179A Pending JPS5648504A (en) | 1979-09-28 | 1979-09-28 | Length measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5648504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61271262A (en) * | 1985-05-24 | 1986-12-01 | Hisamitsu Pharmaceut Co Inc | Phenylalkanoic acid derivative |
| CN104296669A (en) * | 2014-10-23 | 2015-01-21 | 兴乐电缆有限公司 | Anti-slip anti-shaking constant pressure type cable meter counting device |
-
1979
- 1979-09-28 JP JP12663179A patent/JPS5648504A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61271262A (en) * | 1985-05-24 | 1986-12-01 | Hisamitsu Pharmaceut Co Inc | Phenylalkanoic acid derivative |
| CN104296669A (en) * | 2014-10-23 | 2015-01-21 | 兴乐电缆有限公司 | Anti-slip anti-shaking constant pressure type cable meter counting device |
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