JPS5516550A - Information detection system by photo transmitter - Google Patents
Information detection system by photo transmitterInfo
- Publication number
- JPS5516550A JPS5516550A JP8910278A JP8910278A JPS5516550A JP S5516550 A JPS5516550 A JP S5516550A JP 8910278 A JP8910278 A JP 8910278A JP 8910278 A JP8910278 A JP 8910278A JP S5516550 A JPS5516550 A JP S5516550A
- Authority
- JP
- Japan
- Prior art keywords
- photo
- detection
- transmission line
- terminal
- transmitter
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measuring Volume Flow (AREA)
- Examining Or Testing Airtightness (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To improve response by preventing external influence of a noise, etc., by providing several detection parts to hairpin-shaped photo transmitters parallel to a photo transmission line, in an information detection system for light leakage detection of the photo transmission line. CONSTITUTION:Beltlike area L between initial part 2 and terminal part 3 of photo transmission line 1 is divided into detection sections l1 to ln, in parallel to which photo transmitter 4 bent at bending part 5 is arranged, and detection parts 101 to 10n are provided corresponding to the detection sections. At one terminal of photo transmitter 4, photo-pulse generating part 6 is provided and at the other terminal, photo detecting part 7 is provided. Each detection part, provided with light branch unit 11 at its going path 8 and photocoupler 12 at returning path 9, consists of a pair of units 11 and 12 and space 13 where light can leak.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8910278A JPS5516550A (en) | 1978-07-21 | 1978-07-21 | Information detection system by photo transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8910278A JPS5516550A (en) | 1978-07-21 | 1978-07-21 | Information detection system by photo transmitter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5516550A true JPS5516550A (en) | 1980-02-05 |
JPS6233540B2 JPS6233540B2 (en) | 1987-07-21 |
Family
ID=13961515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8910278A Granted JPS5516550A (en) | 1978-07-21 | 1978-07-21 | Information detection system by photo transmitter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5516550A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5975602A (en) * | 1982-10-25 | 1984-04-28 | 矢崎総業株式会社 | Semiconductor moisture sensor |
US4537209A (en) * | 1982-10-15 | 1985-08-27 | Olympus Optical Co., Ltd. | Device for cleaning endoscopes |
JPS61258135A (en) * | 1985-05-13 | 1986-11-15 | Electric Power Dev Co Ltd | Of cable leaking oil detecting method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5337494A (en) * | 1976-09-18 | 1978-04-06 | Denki Kagaku Keiki Kk | Apparatus for detecting oil and so on |
JPS53148488A (en) * | 1977-05-30 | 1978-12-25 | Furukawa Electric Co Ltd:The | Detecting method of leaking points of fluid conveying paths and apparatus for the same |
-
1978
- 1978-07-21 JP JP8910278A patent/JPS5516550A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5337494A (en) * | 1976-09-18 | 1978-04-06 | Denki Kagaku Keiki Kk | Apparatus for detecting oil and so on |
JPS53148488A (en) * | 1977-05-30 | 1978-12-25 | Furukawa Electric Co Ltd:The | Detecting method of leaking points of fluid conveying paths and apparatus for the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4537209A (en) * | 1982-10-15 | 1985-08-27 | Olympus Optical Co., Ltd. | Device for cleaning endoscopes |
JPS5975602A (en) * | 1982-10-25 | 1984-04-28 | 矢崎総業株式会社 | Semiconductor moisture sensor |
JPH0155561B2 (en) * | 1982-10-25 | 1989-11-27 | Yazaki Corp | |
JPS61258135A (en) * | 1985-05-13 | 1986-11-15 | Electric Power Dev Co Ltd | Of cable leaking oil detecting method |
Also Published As
Publication number | Publication date |
---|---|
JPS6233540B2 (en) | 1987-07-21 |
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