JPS6457105A - Optical mechanism for detecting displacement of displacement member in apparatus for inflammable gas - Google Patents

Optical mechanism for detecting displacement of displacement member in apparatus for inflammable gas

Info

Publication number
JPS6457105A
JPS6457105A JP21401987A JP21401987A JPS6457105A JP S6457105 A JPS6457105 A JP S6457105A JP 21401987 A JP21401987 A JP 21401987A JP 21401987 A JP21401987 A JP 21401987A JP S6457105 A JPS6457105 A JP S6457105A
Authority
JP
Japan
Prior art keywords
main body
displacement
light
displacement member
scale
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
Application number
JP21401987A
Other languages
Japanese (ja)
Other versions
JP2501113B2 (en
Inventor
Toshiharu Saito
Shuichi Ogiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nagano Keiki Seisakusho KK
Tokyo Gas Co Ltd
Original Assignee
Nagano Keiki Seisakusho KK
Tokyo Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nagano Keiki Seisakusho KK, Tokyo Gas Co Ltd filed Critical Nagano Keiki Seisakusho KK
Priority to JP62214019A priority Critical patent/JP2501113B2/en
Publication of JPS6457105A publication Critical patent/JPS6457105A/en
Application granted granted Critical
Publication of JP2501113B2 publication Critical patent/JP2501113B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To make it unnecessary for an operator to go for detection and thereby to save time and labor, by a method wherein the displacement of a displacement member of the main body of an apparatus is detected sequentially in the main body of a detector constructed remote from the main body of the apparatus. CONSTITUTION:A scale 3 showing an optical pattern 2 for measuring displacement is provided movably for the main body (e.g. a governor) 1 of an apparatus for inflammable gas so that it corresponds to a displacement member 4(16, 17) of the main body 1, while a light- transmitting elements 5a and a photosensing element 5b for measuring displacement are provided corresponding to the scale 3. The light-transmitting element 5a and the photosensing element 5b are connected to the main body 6 of a detector constructed remote from the main body 1 by optical fibers 7a and 7b. A light from the main body 6 passes through the fiber 7a and is projected from the light-transmitting element 5a onto the pattern 2 of the scale 3, and a transmitted light or a reflected light therefrom is received through the photosensing element 5b and the fiber 7b. When the displacement member 4 is displaced, the scale 3 is also displaced and the photosensitivity for the transmitted light and the like of the pattern 2 is varied. Therefore, the displacement of the displacement member 4 can be detected sequentially by detecting and processing the variation in the main body.
JP62214019A 1987-08-27 1987-08-27 Optical displacement detection mechanism for displacement member in combustible gas equipment Expired - Fee Related JP2501113B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62214019A JP2501113B2 (en) 1987-08-27 1987-08-27 Optical displacement detection mechanism for displacement member in combustible gas equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62214019A JP2501113B2 (en) 1987-08-27 1987-08-27 Optical displacement detection mechanism for displacement member in combustible gas equipment

Publications (2)

Publication Number Publication Date
JPS6457105A true JPS6457105A (en) 1989-03-03
JP2501113B2 JP2501113B2 (en) 1996-05-29

Family

ID=16648927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62214019A Expired - Fee Related JP2501113B2 (en) 1987-08-27 1987-08-27 Optical displacement detection mechanism for displacement member in combustible gas equipment

Country Status (1)

Country Link
JP (1) JP2501113B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012081228A1 (en) * 2010-12-13 2012-06-21 パナソニック株式会社 Fluid control valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138860U (en) * 1977-04-08 1978-11-02
JPS5968206U (en) * 1982-07-08 1984-05-09 河口湖精密株式会社 digital length measuring device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138860U (en) * 1977-04-08 1978-11-02
JPS5968206U (en) * 1982-07-08 1984-05-09 河口湖精密株式会社 digital length measuring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012081228A1 (en) * 2010-12-13 2012-06-21 パナソニック株式会社 Fluid control valve

Also Published As

Publication number Publication date
JP2501113B2 (en) 1996-05-29

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