JPS56111417A - Transducer - Google Patents

Transducer

Info

Publication number
JPS56111417A
JPS56111417A JP1402980A JP1402980A JPS56111417A JP S56111417 A JPS56111417 A JP S56111417A JP 1402980 A JP1402980 A JP 1402980A JP 1402980 A JP1402980 A JP 1402980A JP S56111417 A JPS56111417 A JP S56111417A
Authority
JP
Japan
Prior art keywords
lambda
deltal
physical quantity
string
light
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
JP1402980A
Other languages
Japanese (ja)
Other versions
JPS6133451B2 (en
Inventor
Hideto Iwaoka
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP1402980A priority Critical patent/JPS56111417A/en
Publication of JPS56111417A publication Critical patent/JPS56111417A/en
Publication of JPS6133451B2 publication Critical patent/JPS6133451B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To transmit a signal in a string of pulses with simple constitution by interposing a Fabry-Perot resonator in a transmission-side optical path and by vibrating its reflective mirror at the vibration frequency that corresponds to physical quantity. CONSTITUTION:Light from light source 1, such as LED and a laser, is inputted to Fabry-Perot resonator 4 consisting of reflection mirrors 41 and 42 via optical fiber 11, transmitted to optical fiber 12 and photodetector 2, and then outputted via band-pass filter 3. Reflective mirror 42, coupling with electrostrictive element 51, vibrates with amplitude DELTAl corresponding to the physical quantity to be measured from electronic circuit 5. Setting the amplitude so that lambda<DELTAl<2<1/2>lambda where (lambda) is light wavelength maximizes the light output when l+DELTAl is greater than (lambda) by integer times where (l) is the interval between reflective mirrors 41 and 42, so the pulse-string signal that corresponds to the physical quantity is outputted from band-pass filter 12. Thus, the simple constitution provides signal transfer in a pulse string and prevents a noise from mixing.
JP1402980A 1980-02-06 1980-02-06 Transducer Granted JPS56111417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1402980A JPS56111417A (en) 1980-02-06 1980-02-06 Transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1402980A JPS56111417A (en) 1980-02-06 1980-02-06 Transducer

Publications (2)

Publication Number Publication Date
JPS56111417A true JPS56111417A (en) 1981-09-03
JPS6133451B2 JPS6133451B2 (en) 1986-08-02

Family

ID=11849729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1402980A Granted JPS56111417A (en) 1980-02-06 1980-02-06 Transducer

Country Status (1)

Country Link
JP (1) JPS56111417A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882396A (en) * 1981-09-03 1983-05-17 エステイーシー・ピーエルシー optical transmission system
JPS5947699A (en) * 1982-09-10 1984-03-17 株式会社東芝 Process level detector
JPS6084694A (en) * 1983-10-14 1985-05-14 横河電機株式会社 Optical type measuring apparatus
JPS61137208U (en) * 1985-02-15 1986-08-26
JPS6293603A (en) * 1985-10-21 1987-04-30 Rion Co Ltd Optical physical quantity measuring device
JPS62217132A (en) * 1985-12-30 1987-09-24 テクノロジ−　ダイナミツクス　インコ−ポレ−テツド Optical type pressure detection system
FR2613065A1 (en) * 1987-03-24 1988-09-30 Electricite De France MICHELSON FIBER OPTIC INTERFEROMETER AND ITS APPLICATION IN PARTICULAR TO TEMPERATURE MEASUREMENT
JPH022730A (en) * 1987-12-15 1990-01-08 Siemens Ag Reflective transmitter and receiver for bidirectional bidirectional optical waveguide communication system
JPWO2022038731A1 (en) * 2020-08-20 2022-02-24

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882396A (en) * 1981-09-03 1983-05-17 エステイーシー・ピーエルシー optical transmission system
JPS5947699A (en) * 1982-09-10 1984-03-17 株式会社東芝 Process level detector
JPS6084694A (en) * 1983-10-14 1985-05-14 横河電機株式会社 Optical type measuring apparatus
JPS61137208U (en) * 1985-02-15 1986-08-26
JPS6293603A (en) * 1985-10-21 1987-04-30 Rion Co Ltd Optical physical quantity measuring device
JPS62217132A (en) * 1985-12-30 1987-09-24 テクノロジ−　ダイナミツクス　インコ−ポレ−テツド Optical type pressure detection system
FR2613065A1 (en) * 1987-03-24 1988-09-30 Electricite De France MICHELSON FIBER OPTIC INTERFEROMETER AND ITS APPLICATION IN PARTICULAR TO TEMPERATURE MEASUREMENT
JPS646706A (en) * 1987-03-24 1989-01-11 Electricite De France Michelson optical fiber interferometer
JPH022730A (en) * 1987-12-15 1990-01-08 Siemens Ag Reflective transmitter and receiver for bidirectional bidirectional optical waveguide communication system
JPWO2022038731A1 (en) * 2020-08-20 2022-02-24

Also Published As

Publication number Publication date
JPS6133451B2 (en) 1986-08-02

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