FR2622969B1 - Debitmetre avec affichage par commutateur optique a effet de faraday - Google Patents

Debitmetre avec affichage par commutateur optique a effet de faraday

Info

Publication number
FR2622969B1
FR2622969B1 FR8814118A FR8814118A FR2622969B1 FR 2622969 B1 FR2622969 B1 FR 2622969B1 FR 8814118 A FR8814118 A FR 8814118A FR 8814118 A FR8814118 A FR 8814118A FR 2622969 B1 FR2622969 B1 FR 2622969B1
Authority
FR
France
Prior art keywords
flow meter
optical switch
faraday effect
switch display
effect optical
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.)
Expired - Fee Related
Application number
FR8814118A
Other languages
English (en)
Other versions
FR2622969A1 (fr
Inventor
William Michael Glasheen
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US07/117,174 external-priority patent/US4818080A/en
Priority claimed from US07/141,369 external-priority patent/US4864869A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of FR2622969A1 publication Critical patent/FR2622969A1/fr
Application granted granted Critical
Publication of FR2622969B1 publication Critical patent/FR2622969B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
    • G01R33/0322—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect using the Faraday or Voigt effect
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/82—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted using a driven wheel as impeller and one or more other wheels or moving elements which are angularly restrained by a resilient member, e.g. spring member as the measuring device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G01F15/065—Indicating or recording devices with transmission devices, e.g. mechanical
    • G01F15/066—Indicating or recording devices with transmission devices, e.g. mechanical involving magnetic transmission devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
FR8814118A 1987-11-05 1988-10-28 Debitmetre avec affichage par commutateur optique a effet de faraday Expired - Fee Related FR2622969B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/117,174 US4818080A (en) 1987-11-05 1987-11-05 Monolithic faraday optical switch
US07/141,369 US4864869A (en) 1988-01-04 1988-01-04 Flowmeter with faraday effect optical switch readout

Publications (2)

Publication Number Publication Date
FR2622969A1 FR2622969A1 (fr) 1989-05-12
FR2622969B1 true FR2622969B1 (fr) 1993-01-22

Family

ID=26815009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8814118A Expired - Fee Related FR2622969B1 (fr) 1987-11-05 1988-10-28 Debitmetre avec affichage par commutateur optique a effet de faraday

Country Status (3)

Country Link
DE (1) DE3837100A1 (fr)
FR (1) FR2622969B1 (fr)
GB (1) GB2211934B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376604A3 (fr) * 1988-12-27 1990-10-31 Ametek Aerospace Products, Inc. Capteur de vitesse avec commutation du champ magnétique pour la commande d'un interrupteur magnéto-optique
JPH0782164B2 (ja) * 1991-04-25 1995-09-06 松下電器産業株式会社 磁気光学素子及び磁界測定装置
FR2677130B1 (fr) * 1991-05-27 1994-07-08 Merlin Gerin Dispositif de mesure de courant par fibre optique.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575052A (en) * 1969-03-17 1971-04-13 Bendix Corp Mass flowmeter
US4056976A (en) * 1976-10-12 1977-11-08 General Electric Company Mass rate of flow meter
JPS58150805A (ja) * 1982-03-03 1983-09-07 Fujitsu Ltd 移動体の位置検出装置
JPS58190786A (ja) * 1982-04-30 1983-11-07 Matsushita Electric Ind Co Ltd 光フアイバ形磁界センサ

Also Published As

Publication number Publication date
DE3837100A1 (de) 1989-06-08
GB2211934B (en) 1992-05-06
FR2622969A1 (fr) 1989-05-12
GB2211934A (en) 1989-07-12
GB8825824D0 (en) 1988-12-07

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property
ST Notification of lapse