JPS5294029A - Monitoring method of optical detecting circuit - Google Patents
Monitoring method of optical detecting circuitInfo
- Publication number
- JPS5294029A JPS5294029A JP1031876A JP1031876A JPS5294029A JP S5294029 A JPS5294029 A JP S5294029A JP 1031876 A JP1031876 A JP 1031876A JP 1031876 A JP1031876 A JP 1031876A JP S5294029 A JPS5294029 A JP S5294029A
- Authority
- JP
- Japan
- Prior art keywords
- detecting circuit
- monitoring method
- optical detecting
- monitoring
- cur
- 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
- Handling Of Sheets (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE: To provide a monitoring method to prevent failure by detection of high reliability with monitoring operation status of an optical detecting circuit by whether a specified output signal can be obtained or not on its photo sensitive element when driving current of a light emitting element is varied or cur off.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1031876A JPS5294029A (en) | 1976-02-04 | 1976-02-04 | Monitoring method of optical detecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1031876A JPS5294029A (en) | 1976-02-04 | 1976-02-04 | Monitoring method of optical detecting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5294029A true JPS5294029A (en) | 1977-08-08 |
Family
ID=11746878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1031876A Pending JPS5294029A (en) | 1976-02-04 | 1976-02-04 | Monitoring method of optical detecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5294029A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5961226A (en) * | 1982-09-30 | 1984-04-07 | Anritsu Corp | Device for discriminating fault of optical switch |
JPS6068725U (en) * | 1983-10-18 | 1985-05-15 | 株式会社山武 | photoelectric switch |
JPH01224689A (en) * | 1988-03-04 | 1989-09-07 | Fujitsu Ltd | Optical sensor circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4930375A (en) * | 1970-06-23 | 1974-03-18 |
-
1976
- 1976-02-04 JP JP1031876A patent/JPS5294029A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4930375A (en) * | 1970-06-23 | 1974-03-18 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5961226A (en) * | 1982-09-30 | 1984-04-07 | Anritsu Corp | Device for discriminating fault of optical switch |
JPH0311577B2 (en) * | 1982-09-30 | 1991-02-18 | Anritsu Corp | |
JPS6068725U (en) * | 1983-10-18 | 1985-05-15 | 株式会社山武 | photoelectric switch |
JPH01224689A (en) * | 1988-03-04 | 1989-09-07 | Fujitsu Ltd | Optical sensor circuit |
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