JPS56111417A - Transducer - Google Patents
TransducerInfo
- 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
Links
- 239000013307 optical fiber Substances 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
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 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.
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 (8)
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 | Light 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 displacement measuring apparatus |
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 |
-
1980
- 1980-02-06 JP JP1402980A patent/JPS56111417A/en active Granted
Cited By (9)
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 | Light 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 displacement measuring apparatus |
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 |
Also Published As
Publication number | Publication date |
---|---|
JPS6133451B2 (en) | 1986-08-02 |
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