SE8107188L - SENSOR WITH OPTICAL EXCITED RESONANCE CIRCUIT - Google Patents

SENSOR WITH OPTICAL EXCITED RESONANCE CIRCUIT

Info

Publication number
SE8107188L
SE8107188L SE8107188A SE8107188A SE8107188L SE 8107188 L SE8107188 L SE 8107188L SE 8107188 A SE8107188 A SE 8107188A SE 8107188 A SE8107188 A SE 8107188A SE 8107188 L SE8107188 L SE 8107188L
Authority
SE
Sweden
Prior art keywords
sensor
electrical
opto
resonance circuit
electric
Prior art date
Application number
SE8107188A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE428971B (en
Inventor
M Adolfsson
B Hok
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE8107188A priority Critical patent/SE428971B/en
Priority to DE19823243074 priority patent/DE3243074A1/en
Priority to JP20778482A priority patent/JPS58105398A/en
Priority to GB08234234A priority patent/GB2113835B/en
Publication of SE8107188L publication Critical patent/SE8107188L/en
Publication of SE428971B publication Critical patent/SE428971B/en

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
    • 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
    • G01D5/12—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 using electric or magnetic means
    • G01D5/243—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 using electric or magnetic means influencing the phase or frequency of ac

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

A sensor (9) for detecting or measuring quantities such as position, force, pressure, liquid level, flow, temperature, voltage, current and magnetic field, which comprises opto- electric members for converting optical energy into electric energy and vice versa is characterised in that at least one electrical resonant circuit, the resonant frequency or Q-value of which is arranged to be influenced by the quantity to be detected or measured is included in the electrical circuit of said opto-electric members. As shown, the sensor enables conversion of an electrical pulse input 8, derived from a phase locked loop 13, to a ringing electrical output from 10 which is fed to the phase comparator 14 of the loop 14. The branch 7 of optical fibre coupler 5 may be further divided for simultaneous use of a plurality of sensors with different resonant frequencies. Light emitting and photo diodes 8 and 10 may be replaced by a single diode performing both functions. <IMAGE>
SE8107188A 1981-12-02 1981-12-02 OPTICAL SENSOR SE428971B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8107188A SE428971B (en) 1981-12-02 1981-12-02 OPTICAL SENSOR
DE19823243074 DE3243074A1 (en) 1981-12-02 1982-11-22 OPTICAL SENSOR
JP20778482A JPS58105398A (en) 1981-12-02 1982-11-29 Optical sensor
GB08234234A GB2113835B (en) 1981-12-02 1982-12-01 Sensor with optically excited resonant circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8107188A SE428971B (en) 1981-12-02 1981-12-02 OPTICAL SENSOR

Publications (2)

Publication Number Publication Date
SE8107188L true SE8107188L (en) 1983-06-03
SE428971B SE428971B (en) 1983-08-01

Family

ID=20345183

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8107188A SE428971B (en) 1981-12-02 1981-12-02 OPTICAL SENSOR

Country Status (4)

Country Link
JP (1) JPS58105398A (en)
DE (1) DE3243074A1 (en)
GB (1) GB2113835B (en)
SE (1) SE428971B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131552B (en) * 1982-11-26 1986-12-31 Atomic Energy Authority Uk Non-destructive testing using eddy-currents
JPS60111983A (en) * 1983-11-22 1985-06-18 Honda Motor Co Ltd Object detecting apparatus
GB8614746D0 (en) * 1986-06-17 1986-07-23 Nicholas M J Sensing device
DE4129719A1 (en) * 1991-09-06 1992-03-05 Gistl Egmont Simultaneous oil temp. and level measuring appts. - uses single phototransistor and light emitting diode with functional changeover by optical coupler for simultaneous display
DE19510134A1 (en) * 1995-03-21 1996-10-02 Hydrometer Gmbh Circuit for measuring physical parameters esp. temp. using Thermistor
ATE226349T1 (en) * 1997-12-22 2002-11-15 Bent Thorning Bensen As METHOD AND DEVICE FOR DETECTING A LIQUID
KR102311132B1 (en) 2015-06-30 2021-10-14 생-고뱅 퍼포먼스 플라스틱스 코포레이션 Leak detection system
EP3333776B1 (en) * 2016-12-07 2021-01-27 Porta Saber Lda Activating rfid transponder with light
WO2019104276A1 (en) 2017-11-27 2019-05-31 Saint-Gobain Performance Plastics Corporation Leak detection system and method of making and using the same

Also Published As

Publication number Publication date
GB2113835A (en) 1983-08-10
JPS58105398A (en) 1983-06-23
GB2113835B (en) 1985-06-26
SE428971B (en) 1983-08-01
DE3243074A1 (en) 1983-06-09

Similar Documents

Publication Publication Date Title
US4848923A (en) Method and system to transmit signals being generated by a measuring sensor, and specifically a temperature sensor
EP0390581A3 (en) Instrument for concurrently optically measuring thermal and electric quantities
SE8107188L (en) SENSOR WITH OPTICAL EXCITED RESONANCE CIRCUIT
KR880010333A (en) Magnetic flux meter with Josephson element
RU2633292C2 (en) Measurement of temperature at high voltage potential
JPS6488326A (en) Parameter measurement for system comprising semiconductor laser
SE8401912D0 (en) PROCEDURE AND DEVICE FOR SEATING THE POWER OF INCIDENTAL LIGHT
DE3235591A1 (en) Fibre-optic liquid-level display device
DE3584492D1 (en) FIBER OPTICAL SENSOR WITH A FLUORESCENT SUBSTANCE.
US4338516A (en) Optical crystal temperature gauge with fiber optic connections
Osmundsen et al. Experimental investigation of stability properties for a semiconductor laser with optical feedback
US3610938A (en) Apparatus for monitoring operational parameters of high-voltage valves
CN109708995B (en) Liquid density sensor system based on microwave photon technology
JPS5774615A (en) Optical fiber flowmeter
KR890016399A (en) Optically coupled remote sensor device and system
SU1538068A1 (en) Fibre-optic piezoresonant transducer of pressure
RU2000023C1 (en) Optical contactless level gauge
JPS5657926A (en) Optical temperature detector
JPS5533659A (en) Troubled point locator of power cable
SU1494732A1 (en) Device for measuring contact difference of potentials
RU2091844C1 (en) Luminous flux-to-resonance frequency converter
RU2098784C1 (en) Fiber-optical piezo-resonant measuring transducer
JPS57108702A (en) Displacement meter
JPS5730921A (en) Pressure sensor
JPS5746103A (en) Measurement of optical length

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8107188-8

Effective date: 19880713

Format of ref document f/p: F