FR2363875A1 - Transducteur cylindrique et son procede de fabrication - Google Patents

Transducteur cylindrique et son procede de fabrication

Info

Publication number
FR2363875A1
FR2363875A1 FR7725527A FR7725527A FR2363875A1 FR 2363875 A1 FR2363875 A1 FR 2363875A1 FR 7725527 A FR7725527 A FR 7725527A FR 7725527 A FR7725527 A FR 7725527A FR 2363875 A1 FR2363875 A1 FR 2363875A1
Authority
FR
France
Prior art keywords
manufacturing process
cylindrical transducer
level
outer member
metal layers
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.)
Granted
Application number
FR7725527A
Other languages
English (en)
Other versions
FR2363875B1 (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.)
CRETZLER DONALD
Original Assignee
CRETZLER DONALD
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 CRETZLER DONALD filed Critical CRETZLER DONALD
Publication of FR2363875A1 publication Critical patent/FR2363875A1/fr
Application granted granted Critical
Publication of FR2363875B1 publication Critical patent/FR2363875B1/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
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0005—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Transducteur cylindrique. Il est constitué par deux organes cylindriques concentriques 10, 12 dont les parois en regard, munies de couches métalliques 36, 46, sont situées à une faible distance l'une de l'autre au niveau de la partie intermédiaire et sont réunies par fusion au niveau des extrémités; pour éviter le fendillement de l'organe extérieur 10 lors de l'application d'une pression, on prévoit une zone de transition 18 d'épaisseur croissante, en direction de l'extrémité, au niveau de chaque extrémité de cet organe extérieur; les couches métalliques sont déposées en plusieurs fois, chaque couche partielle étant chauffée avant le dépôt de la suivante. Application notamment à un condensateur.
FR7725527A 1976-08-31 1977-08-22 Transducteur cylindrique et son procede de fabrication Granted FR2363875A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/719,189 US4064549A (en) 1976-08-31 1976-08-31 Cylindrical capacitive quartz transducer

Publications (2)

Publication Number Publication Date
FR2363875A1 true FR2363875A1 (fr) 1978-03-31
FR2363875B1 FR2363875B1 (fr) 1983-05-27

Family

ID=24889101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725527A Granted FR2363875A1 (fr) 1976-08-31 1977-08-22 Transducteur cylindrique et son procede de fabrication

Country Status (6)

Country Link
US (1) US4064549A (fr)
JP (1) JPS5359478A (fr)
CA (1) CA1099388A (fr)
DE (1) DE2735171C2 (fr)
FR (1) FR2363875A1 (fr)
GB (1) GB1589745A (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168518A (en) * 1977-05-10 1979-09-18 Lee Shih Y Capacitor transducer
US4196632A (en) * 1978-08-14 1980-04-08 The Boeing Company Dual capacitance type bonded pressure transducer
US4490773A (en) * 1983-12-19 1984-12-25 United Technologies Corporation Capacitive pressure transducer
US4538466A (en) * 1984-02-06 1985-09-03 Kerber George L Capacitance pressure transducer and method of fabrication therefor
US4853669A (en) * 1985-04-26 1989-08-01 Wisconsin Alumni Research Foundation Sealed cavity semiconductor pressure transducers and method of producing the same
US4744863A (en) * 1985-04-26 1988-05-17 Wisconsin Alumni Research Foundation Sealed cavity semiconductor pressure transducers and method of producing the same
IL82960A0 (en) * 1986-06-30 1987-12-20 Rosemount Inc Differential pressure sensor
US4806783A (en) * 1988-02-25 1989-02-21 Transducer Technologies Inc. Transducer circuit
AT399588B (de) * 1991-12-16 1995-06-26 Avl Verbrennungskraft Messtech Drucksensor
JP2896725B2 (ja) * 1991-12-26 1999-05-31 株式会社山武 静電容量式圧力センサ
US5637802A (en) * 1995-02-28 1997-06-10 Rosemount Inc. Capacitive pressure sensor for a pressure transmitted where electric field emanates substantially from back sides of plates
US6484585B1 (en) 1995-02-28 2002-11-26 Rosemount Inc. Pressure sensor for a pressure transmitter
US5808205A (en) * 1997-04-01 1998-09-15 Rosemount Inc. Eccentric capacitive pressure sensor
US6499348B1 (en) 1999-12-03 2002-12-31 Scimed Life Systems, Inc. Dynamically configurable ultrasound transducer with integral bias regulation and command and control circuitry
US6508129B1 (en) 2000-01-06 2003-01-21 Rosemount Inc. Pressure sensor capsule with improved isolation
DE60108217T2 (de) 2000-01-06 2005-12-29 Rosemount Inc., Eden Prairie Kornwachstumsverfahren zur herstellung einer elektrischen verbindung für mikroelektromechanische systeme (mems)
US6561038B2 (en) 2000-01-06 2003-05-13 Rosemount Inc. Sensor with fluid isolation barrier
US6520020B1 (en) 2000-01-06 2003-02-18 Rosemount Inc. Method and apparatus for a direct bonded isolated pressure sensor
US6505516B1 (en) 2000-01-06 2003-01-14 Rosemount Inc. Capacitive pressure sensing with moving dielectric
US6848316B2 (en) 2002-05-08 2005-02-01 Rosemount Inc. Pressure sensor assembly
US9078570B2 (en) * 2003-10-10 2015-07-14 Sierra Scientific Instruments, Inc. High resolution solid state pressure sensor
US7096738B2 (en) * 2004-03-18 2006-08-29 Rosemount Inc. In-line annular seal-based pressure device
AT503662B1 (de) * 2006-04-20 2007-12-15 Piezocryst Advanced Sensorics Glühkerze mit integriertem drucksensor
US8899105B2 (en) 2012-08-29 2014-12-02 Goutham R. Kirikera Slim capacitance sensor for downhole applications
US8844362B1 (en) * 2013-08-16 2014-09-30 Chevron U.S.A. Inc. System, method, and device for capacitive pressure sensing
US10598559B2 (en) 2017-06-29 2020-03-24 Rosemount Inc. Pressure sensor assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1546836A (fr) * 1966-11-07 1968-11-22 United Aircraft Corp Traducteur de pression
US3750476A (en) * 1967-09-25 1973-08-07 Bissett Berman Corp Pressure transducer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859575A (en) * 1974-02-11 1975-01-07 Lee Shih Ying Variable capacitance sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1546836A (fr) * 1966-11-07 1968-11-22 United Aircraft Corp Traducteur de pression
US3750476A (en) * 1967-09-25 1973-08-07 Bissett Berman Corp Pressure transducer

Also Published As

Publication number Publication date
JPS5359478A (en) 1978-05-29
US4064549A (en) 1977-12-20
CA1099388A (fr) 1981-04-14
DE2735171A1 (de) 1978-03-02
GB1589745A (en) 1981-05-20
FR2363875B1 (fr) 1983-05-27
DE2735171C2 (de) 1984-11-29

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Legal Events

Date Code Title Description
ST Notification of lapse