JPS57160013A - Optical detector - Google Patents

Optical detector

Info

Publication number
JPS57160013A
JPS57160013A JP4584981A JP4584981A JPS57160013A JP S57160013 A JPS57160013 A JP S57160013A JP 4584981 A JP4584981 A JP 4584981A JP 4584981 A JP4584981 A JP 4584981A JP S57160013 A JPS57160013 A JP S57160013A
Authority
JP
Japan
Prior art keywords
detecting element
fluorescence
light emitting
optical fiber
optical
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
Application number
JP4584981A
Other languages
Japanese (ja)
Inventor
Kazuaki Urasaki
Kazuo Mikami
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP4584981A priority Critical patent/JPS57160013A/en
Publication of JPS57160013A publication Critical patent/JPS57160013A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres

Abstract

PURPOSE:To obtain an economical, compact and easy-to-manufacture optical detector by a method wherein a fluorescent stuff coated on a movable piece is excited by the light from a light emitting/detecting element via an optical fiber scope and the leght emitting/detecting element detects whether the fluorescence exists or not. CONSTITUTION:The voltage from a time sharing signal generator 49 is applied to an LED 41a of a light emitting/detecting element 41 (21) and the emitted light excites a fluorescent stuff coated on a movable piece 24 attached to a snap- action bimetal 23 via an optical fiber 22. The fluorescence is detocted by a phot- diode 41b of the light emitting/detecting element 41 (21) via the optical fiber 22. The output of the photo-diode 41b is put into a comparator 47 and compared with the standard voltage determined by resistors 45 and 46 and read into a latching circuit 48 being synchronized with the signal T2 from the time sharing signal gererator 49 and only the signal which corresponds to the fluorescence is put out. Components or devices such as a plurality of optical fibers or optical dividers or couplers are not necessary, so that the equipment can be economical and compact and can be manufactured easily.
JP4584981A 1981-03-27 1981-03-27 Optical detector Pending JPS57160013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4584981A JPS57160013A (en) 1981-03-27 1981-03-27 Optical detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4584981A JPS57160013A (en) 1981-03-27 1981-03-27 Optical detector

Publications (1)

Publication Number Publication Date
JPS57160013A true JPS57160013A (en) 1982-10-02

Family

ID=12730652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4584981A Pending JPS57160013A (en) 1981-03-27 1981-03-27 Optical detector

Country Status (1)

Country Link
JP (1) JPS57160013A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116131A2 (en) * 1982-11-22 1984-08-22 Asea Ab Fibre optics transducer
EP0361374A2 (en) * 1988-09-28 1990-04-04 Hoechst Aktiengesellschaft Light-detecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116131A2 (en) * 1982-11-22 1984-08-22 Asea Ab Fibre optics transducer
EP0116131A3 (en) * 1982-11-22 1988-02-10 Asea Ab Fibre optics transducer
EP0361374A2 (en) * 1988-09-28 1990-04-04 Hoechst Aktiengesellschaft Light-detecting device

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