FR2444258A1 - ELECTRO-OPTICAL OSCILLATOR AND METHOD FOR OPERATING IT - Google Patents

ELECTRO-OPTICAL OSCILLATOR AND METHOD FOR OPERATING IT

Info

Publication number
FR2444258A1
FR2444258A1 FR7930502A FR7930502A FR2444258A1 FR 2444258 A1 FR2444258 A1 FR 2444258A1 FR 7930502 A FR7930502 A FR 7930502A FR 7930502 A FR7930502 A FR 7930502A FR 2444258 A1 FR2444258 A1 FR 2444258A1
Authority
FR
France
Prior art keywords
electro
operating
optical
optical oscillator
waveguide
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.)
Withdrawn
Application number
FR7930502A
Other languages
French (fr)
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2444258A1 publication Critical patent/FR2444258A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/37—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes
    • G01F1/372—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes with electrical or electro-mechanical indication
    • 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
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/46—Pitot tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
    • G01K5/18—Measuring temperature based on the expansion or contraction of a material the material being a liquid with electric conversion means for final indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
    • G01L9/0039—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means using photoelectric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0091—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means
    • G01L9/0097—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means using photoelectric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Optical Transform (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Level Indicators Using A Float (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne des instruments électro-optiques. Un oscillateur électro-optique 10 comporte un circuit électronique 12 et un guide d'ondes 14. Le circuit électronique 12 comprend une source 16 de radiations électromagnétiques, un connecteur de sortie 18, un amplificateur 20 et un photodétecteur 22. Avec un guide d'ondes optique 24, est prévu un élément 26 divisant un faisceau 28 de radiations électromagnétiques émises par la source 16. Le capteur de l'invention réagit au mouvement d'une surface réfléchissante 30 d'une cible 32. L'invention est utilisée pour la détection de paramètres dans des milieux rigoureux.The invention relates to electro-optical instruments. An electro-optical oscillator 10 comprises an electronic circuit 12 and a waveguide 14. The electronic circuit 12 comprises a source 16 of electromagnetic radiation, an output connector 18, an amplifier 20 and a photodetector 22. With a waveguide. optical waves 24, there is provided an element 26 dividing a beam 28 of electromagnetic radiation emitted by the source 16. The sensor of the invention reacts to the movement of a reflecting surface 30 of a target 32. The invention is used for the detection. detection of parameters in harsh environments.

FR7930502A 1978-12-13 1979-12-12 ELECTRO-OPTICAL OSCILLATOR AND METHOD FOR OPERATING IT Withdrawn FR2444258A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96894878A 1978-12-13 1978-12-13

Publications (1)

Publication Number Publication Date
FR2444258A1 true FR2444258A1 (en) 1980-07-11

Family

ID=25514975

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930502A Withdrawn FR2444258A1 (en) 1978-12-13 1979-12-12 ELECTRO-OPTICAL OSCILLATOR AND METHOD FOR OPERATING IT

Country Status (8)

Country Link
JP (1) JPS5582917A (en)
CA (1) CA1130108A (en)
DE (1) DE2950209A1 (en)
FR (1) FR2444258A1 (en)
GB (1) GB2040131A (en)
IL (1) IL58895A0 (en)
IT (1) IT1127732B (en)
SE (1) SE7910055L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074055A2 (en) * 1981-09-03 1983-03-16 Honeywell Inc. Fiber optic pressure sensor
FR3044413A1 (en) * 2015-12-01 2017-06-02 Safran FIBER OPTIC MEASURING PROBE

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142331U (en) * 1981-02-27 1982-09-07
DE3236360A1 (en) * 1982-04-16 1983-10-20 Brown, Boveri & Cie Ag, 6800 Mannheim Method and device for monitoring rooms for the presence or absence or the movement of objects
DE3307966A1 (en) * 1983-03-07 1984-09-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Temperature sensor
DE3621009A1 (en) * 1986-06-23 1988-01-07 Truetzschler & Co DEVICE FOR DETECTING THE LEVEL IN A FIBER MATERIAL STORAGE, ESPECIALLY FOR SPINNING PREPARATION MACHINES
GB8928714D0 (en) * 1989-12-20 1990-11-21 Hunting Eng Ltd Electro-optical devices
DE4213602A1 (en) * 1992-04-24 1993-10-28 Alexander W Dr Ing Koch Temp. measurement using temp. dependent length change of expanding body - dividing beam into sensing and reference beams, directing sensing beam to expanding body and measuring phase difference between beams.
US7642096B2 (en) 2004-12-20 2010-01-05 Massachusetts Institute Of Technology Liquid expansion thermometer and microcalorimeter
DE102011079983A1 (en) * 2011-07-28 2013-01-31 Robert Bosch Gmbh measuring device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1449293A (en) * 1965-10-05 1966-08-12 Bolkow Gmbh Device for measuring, using laser beams, the true altitude of a flying body in relation to the earth's surface
FR2044035A5 (en) * 1968-06-26 1971-02-19 Zeiss Jena Veb Carl
GB1273676A (en) * 1969-09-19 1972-05-10 Zeiss Jena Veb Carl Electro-magnetic distance measuring apparatus
FR2321116A1 (en) * 1975-08-13 1977-03-11 Anvar TEMPERATURE MEASUREMENT PROCESS AND PROBE FOR ITS IMPLEMENTATION

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1449293A (en) * 1965-10-05 1966-08-12 Bolkow Gmbh Device for measuring, using laser beams, the true altitude of a flying body in relation to the earth's surface
FR2044035A5 (en) * 1968-06-26 1971-02-19 Zeiss Jena Veb Carl
GB1273676A (en) * 1969-09-19 1972-05-10 Zeiss Jena Veb Carl Electro-magnetic distance measuring apparatus
FR2321116A1 (en) * 1975-08-13 1977-03-11 Anvar TEMPERATURE MEASUREMENT PROCESS AND PROBE FOR ITS IMPLEMENTATION

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074055A2 (en) * 1981-09-03 1983-03-16 Honeywell Inc. Fiber optic pressure sensor
EP0074055A3 (en) * 1981-09-03 1984-09-12 Honeywell Inc. Fiber optic pressure sensor
FR3044413A1 (en) * 2015-12-01 2017-06-02 Safran FIBER OPTIC MEASURING PROBE

Also Published As

Publication number Publication date
DE2950209A1 (en) 1980-06-26
IL58895A0 (en) 1980-03-31
GB2040131A (en) 1980-08-20
IT1127732B (en) 1986-05-21
JPS5582917A (en) 1980-06-23
SE7910055L (en) 1980-06-14
CA1130108A (en) 1982-08-24
IT7928075A0 (en) 1979-12-17

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Legal Events

Date Code Title Description
ST Notification of lapse