FR2725787B1 - - Google Patents

Info

Publication number
FR2725787B1
FR2725787B1 FR9504847A FR9504847A FR2725787B1 FR 2725787 B1 FR2725787 B1 FR 2725787B1 FR 9504847 A FR9504847 A FR 9504847A FR 9504847 A FR9504847 A FR 9504847A FR 2725787 B1 FR2725787 B1 FR 2725787B1
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
FR9504847A
Other versions
FR2725787A1 (fr
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 FR9412640A external-priority patent/FR2725786A1/fr
Application filed filed Critical
Priority to FR9504847A priority Critical patent/FR2725787A1/fr
Publication of FR2725787A1 publication Critical patent/FR2725787A1/fr
Application granted granted Critical
Publication of FR2725787B1 publication Critical patent/FR2725787B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01L9/08—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 by making use of piezoelectric devices, i.e. electric circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Fluid Pressure (AREA)
FR9504847A 1994-10-17 1995-04-14 Nouveau capteur piezo-electrique et ses applications Granted FR2725787A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9504847A FR2725787A1 (fr) 1994-10-17 1995-04-14 Nouveau capteur piezo-electrique et ses applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9412640A FR2725786A1 (fr) 1994-10-17 1994-10-17 Capteur piezo-electrique et applications a l'automobile
FR9504847A FR2725787A1 (fr) 1994-10-17 1995-04-14 Nouveau capteur piezo-electrique et ses applications

Publications (2)

Publication Number Publication Date
FR2725787A1 FR2725787A1 (fr) 1996-04-19
FR2725787B1 true FR2725787B1 (fr) 1997-02-21

Family

ID=26231490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9504847A Granted FR2725787A1 (fr) 1994-10-17 1995-04-14 Nouveau capteur piezo-electrique et ses applications

Country Status (1)

Country Link
FR (1) FR2725787A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004044531A2 (fr) 2002-11-12 2004-05-27 Cidra Corporation Appareil comportant une mosaique de capteurs en couches piezo-electriques a pince pour la mesure de parametres d'un flux de traitement au sein d'une conduite
US7146864B2 (en) 2003-03-04 2006-12-12 Cidra Corporation Apparatus having a multi-band sensor assembly for measuring a parameter of a fluid flow flowing within a pipe
CA2537897C (fr) 2003-08-01 2014-06-10 Cidra Corporation Procede et appareil de mesure de parametres d'un fluide a haute temperature circulant dans une conduite, utilisant un ensemble de detecteurs piezo-electriques de flux
WO2005015135A2 (fr) 2003-08-08 2005-02-17 Cidra Corporation Capteur a base de piezo-cable permettant de mesurer des pressions instables a l'interieur d'un tuyau
US7367239B2 (en) 2004-03-23 2008-05-06 Cidra Corporation Piezocable based sensor for measuring unsteady pressures inside a pipe
US7249525B1 (en) 2005-06-22 2007-07-31 Cidra Corporation Apparatus for measuring parameters of a fluid in a lined pipe
WO2007009097A1 (fr) 2005-07-13 2007-01-18 Cidra Corporation Procede et appareil de mesure de parametres d'un ecoulement de liquide au moyen d'un reseau de capteurs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375466B (de) * 1977-07-27 1984-08-10 List Hans Messwertaufnehmer mit einem piezoelektrischen messelement
IT8353101V0 (it) * 1983-03-23 1983-03-23 Marelli Autronica Dispositivo rilevatore della pressione del fluido all interno di un condotto
GB2138142B (en) * 1983-04-12 1986-11-12 Autosense Equipment Limited A transducer for use in detecting the pressure of high pressure fuel in the injection supply pipe of a compression ignition engine
JPH02203230A (ja) * 1989-01-31 1990-08-13 Daikin Ind Ltd 管内圧力変化検知変換器

Also Published As

Publication number Publication date
FR2725787A1 (fr) 1996-04-19

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Legal Events

Date Code Title Description
ST Notification of lapse