JPS56111415A - Multipoint time-division measuring device - Google Patents

Multipoint time-division measuring device

Info

Publication number
JPS56111415A
JPS56111415A JP1349580A JP1349580A JPS56111415A JP S56111415 A JPS56111415 A JP S56111415A JP 1349580 A JP1349580 A JP 1349580A JP 1349580 A JP1349580 A JP 1349580A JP S56111415 A JPS56111415 A JP S56111415A
Authority
JP
Japan
Prior art keywords
light
fiber
photosensors
branching devices
optical fiber
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
JP1349580A
Other languages
Japanese (ja)
Other versions
JPS614227B2 (en
Inventor
Keisuke Takada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1349580A priority Critical patent/JPS56111415A/en
Publication of JPS56111415A publication Critical patent/JPS56111415A/en
Publication of JPS614227B2 publication Critical patent/JPS614227B2/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)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To measure efficiently measurement values from photosensors via a couple of trnamitting and receiving optical fibers, by inputting light sigals, proportional to the measurement values from the photosensors, to the receiving optical fiber in time-division mode via optical shutters. CONSTITUTION:Light from light source 1 is inputted to transmitting optical fiber 2, branched by light branching devices 3 (3-1-3-3) connected to fiber 2 and then outputted to other branching devices and photosensors 4. Photosensors 4 (4-1-4-3) transmit light signals, having fluctuations of the quantity of light, frequency and wavelength in proportion to a process variable, to receiving optical fiber 6 via optical shutters 5 (5-1-5-3). To fiber 6, light branching devices 7 (7-1-7-3) similar to branching devices 3 are connected. Photodetector 8, connected to one end of fiber 6, measures the process variable by photodetection. In this case, shutters 5 are selected by shutter control part 9 and the excitation of coil 23 through the light-current conversion of phototransistor 21 provided at one end of optical fiber 20 constituting shutter 5 puts light shiedling body 24 into operation, providing switching operation.
JP1349580A 1980-02-08 1980-02-08 Multipoint time-division measuring device Granted JPS56111415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1349580A JPS56111415A (en) 1980-02-08 1980-02-08 Multipoint time-division measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1349580A JPS56111415A (en) 1980-02-08 1980-02-08 Multipoint time-division measuring device

Publications (2)

Publication Number Publication Date
JPS56111415A true JPS56111415A (en) 1981-09-03
JPS614227B2 JPS614227B2 (en) 1986-02-07

Family

ID=11834689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1349580A Granted JPS56111415A (en) 1980-02-08 1980-02-08 Multipoint time-division measuring device

Country Status (1)

Country Link
JP (1) JPS56111415A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575284A1 (en) * 1984-12-21 1986-06-27 Mcb OPTICAL POSITION MARKING DEVICE
FR2575285A1 (en) * 1984-12-21 1986-06-27 Mcb OPTICAL POSITION MARKING ENCODER
FR2589234A1 (en) * 1985-10-29 1987-04-30 Mcb Optical positional identification encoder of the analog type and code carrying element for such a device
FR2634080A1 (en) * 1988-07-08 1990-01-12 Thomson Csf OPTICAL SENSOR COHERENCE READING DEVICE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575284A1 (en) * 1984-12-21 1986-06-27 Mcb OPTICAL POSITION MARKING DEVICE
FR2575285A1 (en) * 1984-12-21 1986-06-27 Mcb OPTICAL POSITION MARKING ENCODER
US4713541A (en) * 1984-12-21 1987-12-15 M.C.B. Optical position locating device
US4739163A (en) * 1984-12-21 1988-04-19 M.C.B. Position locating optical coder utilizing optical fiber
FR2589234A1 (en) * 1985-10-29 1987-04-30 Mcb Optical positional identification encoder of the analog type and code carrying element for such a device
FR2634080A1 (en) * 1988-07-08 1990-01-12 Thomson Csf OPTICAL SENSOR COHERENCE READING DEVICE
US5058973A (en) * 1988-07-08 1991-10-22 Thomson-Csf Device for reading by optical sensor coherence

Also Published As

Publication number Publication date
JPS614227B2 (en) 1986-02-07

Similar Documents

Publication Publication Date Title
EP0054292A3 (en) Fibre-optical measuring equipment
CA1246354A (en) Optical measuring device using a spectral modulation sensor having an optically resonant structure
JPS55152434A (en) Light output monitoring system for light repeater
JPS56111415A (en) Multipoint time-division measuring device
EP0184270A3 (en) Fiber coupler displacement transducer
EP0485629A4 (en) Method and device for testing multi-core optical fiber cable fitted with optical connector
JPS5489680A (en) Optical measuring method and optical measuring apparatus
JPS55132921A (en) Sensor using optical fiber
DE3271796D1 (en) Arrangement for measuring physical parameters with an optical sensor
JPS56111416A (en) Multipoint time-division measuring device
JPS57154954A (en) Transmitting system of optical data
JPH068724B2 (en) Optical detector
JPS55142220A (en) Device for measuring wavelength
JPS56164941A (en) Color tone discriminator
JPS5687948A (en) Optical communication system
JPS56137135A (en) Optical fiber for optical sensor
JPS55158744A (en) Light wavelength control system for optical multiplex communication system
JPS56118675A (en) Method for measuring optical modulation
JPS5461548A (en) Connection of optical fibers
FR2439397A1 (en) Attenuation meter for signals in fibre optic conductor - uses self-contained light emitting and receiving circuits
JPS57199932A (en) Optical fiber measuring method
JPH0515067Y2 (en)
JPS57127342A (en) Branchable multiplex loop transmitter
JPS56103552A (en) Transmitting system of monitor signal
SU1397775A1 (en) Device for measuring transient attenuation among channels of fibre optical splitter