FR2671870B1 - - Google Patents

Info

Publication number
FR2671870B1
FR2671870B1 FR9100550A FR9100550A FR2671870B1 FR 2671870 B1 FR2671870 B1 FR 2671870B1 FR 9100550 A FR9100550 A FR 9100550A FR 9100550 A FR9100550 A FR 9100550A FR 2671870 B1 FR2671870 B1 FR 2671870B1
Authority
FR
France
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
FR9100550A
Other languages
French (fr)
Other versions
FR2671870A1 (en
Inventor
Jean-Claude Bacri (Laboratoire D'ultra Sons Universite Pierre Et Marie Curie)
Regine Perzynski (Laboratoire D'ultra Sons Universite Pierre Et Marie Curie)
Dominique Salin (Laboratoire D'ultra Sons Universite Pierre Et Marie Curie)
Jacques Servais (Laboratoire D'ultra Sons Universite Pierre Et Marie Curie)
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.)
Universite Pierre et Marie Curie Paris 6
Original Assignee
Universite Pierre et Marie Curie Paris 6
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 Universite Pierre et Marie Curie Paris 6 filed Critical Universite Pierre et Marie Curie Paris 6
Priority to FR9100550A priority Critical patent/FR2671870A1/en
Publication of FR2671870A1 publication Critical patent/FR2671870A1/en
Application granted granted Critical
Publication of FR2671870B1 publication Critical patent/FR2671870B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/11—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by inductive pick-up
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow
    • G01F5/005—Measuring a proportion of the volume flow by measuring pressure or differential pressure, created by the use of flow constriction
    • 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
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0004—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in inductance
FR9100550A 1991-01-18 1991-01-18 Ferrofluid force sensors Granted FR2671870A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9100550A FR2671870A1 (en) 1991-01-18 1991-01-18 Ferrofluid force sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9100550A FR2671870A1 (en) 1991-01-18 1991-01-18 Ferrofluid force sensors

Publications (2)

Publication Number Publication Date
FR2671870A1 FR2671870A1 (en) 1992-07-24
FR2671870B1 true FR2671870B1 (en) 1994-07-13

Family

ID=9408816

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9100550A Granted FR2671870A1 (en) 1991-01-18 1991-01-18 Ferrofluid force sensors

Country Status (1)

Country Link
FR (1) FR2671870A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396802A (en) * 1993-08-26 1995-03-14 Viatran Corporation Differential pressure transducer utilizing a variable ferrofluid keeper as an active magnetic circuit element
US11940502B2 (en) 2021-09-24 2024-03-26 Analog Devices International Unlimited Company Magnetic field sensing based on particle position within container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516294A (en) * 1966-04-12 1970-06-23 Robert W Schmieder Acceleration sensitive device
US3956938A (en) * 1975-03-20 1976-05-18 The Bendix Corporation Pressure sensors utilizing ferromagnetic fluids
JPS60133370A (en) * 1983-12-21 1985-07-16 Diesel Kiki Co Ltd Acceleration sensor
DE3510987A1 (en) * 1984-03-29 1985-10-24 Diesel Kiki Co. Ltd., Tokio/Tokyo Accelerometer

Also Published As

Publication number Publication date
FR2671870A1 (en) 1992-07-24

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Legal Events

Date Code Title Description
ST Notification of lapse