FR2363875A1 - Transducteur cylindrique et son procede de fabrication - Google Patents
Transducteur cylindrique et son procede de fabricationInfo
- 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
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.
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)
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 |
US6484585B1 (en) | 1995-02-28 | 2002-11-26 | Rosemount Inc. | Pressure sensor for a pressure transmitter |
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 |
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 |
US6520020B1 (en) | 2000-01-06 | 2003-02-18 | Rosemount Inc. | Method and apparatus for a direct bonded isolated pressure sensor |
US6508129B1 (en) | 2000-01-06 | 2003-01-21 | Rosemount Inc. | Pressure sensor capsule with improved isolation |
US6561038B2 (en) | 2000-01-06 | 2003-05-13 | Rosemount Inc. | Sensor with fluid isolation barrier |
US6505516B1 (en) | 2000-01-06 | 2003-01-14 | Rosemount Inc. | Capacitive pressure sensing with moving dielectric |
US6516671B2 (en) | 2000-01-06 | 2003-02-11 | Rosemount Inc. | Grain growth of electrical interconnection for microelectromechanical systems (MEMS) |
US6848316B2 (en) | 2002-05-08 | 2005-02-01 | Rosemount Inc. | Pressure sensor assembly |
EP1711786B1 (fr) * | 2003-10-10 | 2013-07-31 | Given Imaging (Los Angeles) LLC | Capteur de pression a l'etat solide haute resolution |
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3859575A (en) * | 1974-02-11 | 1975-01-07 | Lee Shih Ying | Variable capacitance sensor |
-
1976
- 1976-08-31 US US05/719,189 patent/US4064549A/en not_active Expired - Lifetime
-
1977
- 1977-06-30 CA CA281,780A patent/CA1099388A/fr not_active Expired
- 1977-08-02 DE DE2735171A patent/DE2735171C2/de not_active Expired
- 1977-08-18 GB GB34773/77A patent/GB1589745A/en not_active Expired
- 1977-08-22 FR FR7725527A patent/FR2363875A1/fr active Granted
- 1977-08-30 JP JP10413777A patent/JPS5359478A/ja active Pending
Patent Citations (2)
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 |
DE2735171C2 (de) | 1984-11-29 |
FR2363875B1 (fr) | 1983-05-27 |
GB1589745A (en) | 1981-05-20 |
DE2735171A1 (de) | 1978-03-02 |
CA1099388A (fr) | 1981-04-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |