JPS5611304A - Position detecting sensor - Google Patents
Position detecting sensorInfo
- Publication number
- JPS5611304A JPS5611304A JP8645479A JP8645479A JPS5611304A JP S5611304 A JPS5611304 A JP S5611304A JP 8645479 A JP8645479 A JP 8645479A JP 8645479 A JP8645479 A JP 8645479A JP S5611304 A JPS5611304 A JP S5611304A
- Authority
- JP
- Japan
- Prior art keywords
- line
- arms
- sensor
- optical fibers
- transmission line
- 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
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Examining Or Testing Airtightness (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE: To constitute a passive and noninductive sensor, by arranging optical fibers on one line with a slight gap left on arms of tuning forks which are arranged on one line and are different in natural frequency and by providing light emitting units and photodetecting units in one end faces and the other respectively.
CONSTITUTION: Tuning forks 11W1m different in natural frequency are arranged on one line, and optical fibers 21 and 22 opposite to each other with a slight gap left between their end faces are provided in the upper end parts of arms 11a and 11b of tuning fork 11 through supporting pieces 11c and 11d. Optical fiber transmission line 2 is formed by similar optical fibers 21, 22,...2n. Light is transmitted from light emitting unit 3 provided in one end face of transmission line 2 to transmission line 2 and is detected by photodetecting unit 4 provided in the other end face. In case that explosion occurs near this sensor, a vibrating light signal enters to photodetecting unit 4 due to vibration of arms of tuning forks. By frequency analysis of the output, the tuning fork in the corresponding position can be specified to find the sound source position. Thus, the passive and noninductive sensor can be constituted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8645479A JPS5611304A (en) | 1979-07-10 | 1979-07-10 | Position detecting sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8645479A JPS5611304A (en) | 1979-07-10 | 1979-07-10 | Position detecting sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5611304A true JPS5611304A (en) | 1981-02-04 |
JPS6259244B2 JPS6259244B2 (en) | 1987-12-10 |
Family
ID=13887375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8645479A Granted JPS5611304A (en) | 1979-07-10 | 1979-07-10 | Position detecting sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5611304A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61186861A (en) * | 1985-02-14 | 1986-08-20 | Matsushita Electric Ind Co Ltd | Optical fiber applied sensor device |
DE10228353A1 (en) * | 2002-06-25 | 2004-01-15 | Daimlerchrysler Ag | Piezo sensor system for detecting the needle lift of an injection nozzle of a common rail injector |
CN111800573A (en) * | 2020-06-23 | 2020-10-20 | 聂敬东 | Monitoring camera capable of being rotated by sound control |
-
1979
- 1979-07-10 JP JP8645479A patent/JPS5611304A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61186861A (en) * | 1985-02-14 | 1986-08-20 | Matsushita Electric Ind Co Ltd | Optical fiber applied sensor device |
DE10228353A1 (en) * | 2002-06-25 | 2004-01-15 | Daimlerchrysler Ag | Piezo sensor system for detecting the needle lift of an injection nozzle of a common rail injector |
CN111800573A (en) * | 2020-06-23 | 2020-10-20 | 聂敬东 | Monitoring camera capable of being rotated by sound control |
Also Published As
Publication number | Publication date |
---|---|
JPS6259244B2 (en) | 1987-12-10 |
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