GB2059071B - Capacitive pressure transducer - Google Patents

Capacitive pressure transducer

Info

Publication number: GB2059071B
Authority: GB; United Kingdom
Prior art keywords: pressure transducer; capacitive pressure; capacitive; transducer; pressure
Prior art date: 1979-09-21
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

Application number

GB8030293A

Other versions

GB2059071A (en

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.)

Robert Bosch GmbH

Original Assignee

Robert Bosch GmbH

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.)

1979-09-21

Filing date

1980-09-19

Publication date

1983-07-06

1980-09-19 Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH

1981-04-15 Publication of GB2059071A publication Critical patent/GB2059071A/en

1983-07-06 Application granted granted Critical

1983-07-06 Publication of GB2059071B publication Critical patent/GB2059071B/en

Status Expired legal-status Critical Current

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
- G01L9/12—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 variations in capacitance, i.e. electric circuits therefor
- 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
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Measuring Fluid Pressure (AREA)

GB8030293A 1979-09-21 1980-09-19 Capacitive pressure transducer Expired GB2059071B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19792938205 DE2938205A1 (en)	1979-09-21	1979-09-21	CAPACITIVE PRESSURE SENSOR AND EVALUATION DEVICE HERE

Publications (2)

Publication Number	Publication Date
GB2059071A GB2059071A (en)	1981-04-15
GB2059071B true GB2059071B (en)	1983-07-06

Family

ID=6081461

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8030293A Expired GB2059071B (en)	1979-09-21	1980-09-19	Capacitive pressure transducer

Country Status (7)

Country	Link
JP (1)	JPS5654331A (en)
BR (1)	BR8005996A (en)
DE (1)	DE2938205A1 (en)
FR (1)	FR2466012A1 (en)
GB (1)	GB2059071B (en)
IT (1)	IT1132979B (en)
SE (1)	SE8006587L (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3128032A1 (en) *	1981-07-16	1983-02-03	Robert Bosch Gmbh, 7000 Stuttgart	ARRANGEMENT FOR DETECTING A PRESSURE
DE3337978C2 (en) *	1983-10-19	1987-01-15	Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln	Device for measuring a pressure and a temporal pressure curve
FI842307A (en) *	1984-06-07	1985-12-08	Vaisala Oy	FOERFARANDE FOER AOSTADKOMMANDE AV GENOMFOERING I EN MIKROMEKANISK KONSTRUKTION.
US4658358A (en) *	1984-06-13	1987-04-14	Battelle Memorial Institute	Underwater computer
FI75426C (en) *	1984-10-11	1988-06-09	Vaisala Oy	ABSOLUTTRYCKGIVARE.
US4617606A (en) *	1985-01-31	1986-10-14	Motorola, Inc.	Capacitive pressure transducer
DE3523104A1 (en) *	1985-06-28	1987-01-22	Leybold Heraeus Gmbh & Co Kg	Arrangement having a measuring electrode to which are assigned at fixed distances a first and a second field-generating electrode
US4716492A (en) *	1986-05-05	1987-12-29	Texas Instruments Incorporated	Pressure sensor with improved capacitive pressure transducer
US5051937A (en) *	1986-05-05	1991-09-24	Texas Instruments Incorporated	Low cost high precision sensor
US4774626A (en) *	1986-05-05	1988-09-27	Texas Instruments Incorporated	Pressure sensor with improved capacitive pressure transducer
US4982351A (en) *	1986-05-05	1991-01-01	Texas Instruments Incorporated	Low cost high precision sensor
US4951236A (en) *	1986-05-05	1990-08-21	Texas Instruments Incorporated	Low cost high precision sensor
US4872945A (en) *	1986-06-25	1989-10-10	Motorola Inc.	Post seal etching of transducer diaphragm
DE3638978C2 (en) *	1986-11-14	1996-04-25	Teves Gmbh Alfred	Electro-hydraulic device for the continuous monitoring of the pressure in a hydraulic motor vehicle brake system
JPS6438546U (en) *	1987-09-02	1989-03-08
JPH0743625Y2 (en) *	1987-10-13	1995-10-09	株式会社トーキン	Capacitive load sensor
JPH0542353Y2 (en) *	1987-11-13	1993-10-26
JPH01136041A (en) *	1987-11-24	1989-05-29	Tokin Corp	Electrostatic capacitance type load sensor
JPH086275Y2 (en) *	1987-12-19	1996-02-21	株式会社トーキン	Capacitive load sensor
JPH076499Y2 (en) *	1988-09-16	1995-02-15	株式会社トーキン	High stability type capacitive load detector
DE3912217A1 (en) *	1989-04-13	1990-10-18	Endress Hauser Gmbh Co	PRESSURE SENSOR
FR2775075B1 (en)	1998-02-18	2000-05-05	Theobald Sa A	DIFFERENTIAL PRESSURE SENSOR
DE102008034350A1 (en) *	2008-07-23	2010-02-11	Continental Automotive Gmbh	Sensor membrane for pressure sensor, has two surfaces comprising profiles which are formed by corroding, where surfaces face each other and run parallel to each other and profiles are formed in form of concentric circles around center point

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3993939A (en) *	1975-01-07	1976-11-23	The Bendix Corporation	Pressure variable capacitor
US4168517A (en) *	1977-11-10	1979-09-18	Lee Shih Y	Capacitive pressure transducer

1979
- 1979-09-21 DE DE19792938205 patent/DE2938205A1/en not_active Withdrawn
1980
- 1980-09-18 JP JP12865380A patent/JPS5654331A/en active Pending
- 1980-09-19 IT IT24775/80A patent/IT1132979B/en active
- 1980-09-19 BR BR8005996A patent/BR8005996A/en unknown
- 1980-09-19 GB GB8030293A patent/GB2059071B/en not_active Expired
- 1980-09-19 FR FR8020255A patent/FR2466012A1/en active Granted
- 1980-09-19 SE SE8006587A patent/SE8006587L/en not_active Application Discontinuation

Also Published As

Publication number	Publication date
JPS5654331A (en)	1981-05-14
GB2059071A (en)	1981-04-15
IT1132979B (en)	1986-07-09
FR2466012B1 (en)	1984-10-19
FR2466012A1 (en)	1981-03-27
IT8024775A0 (en)	1980-09-19
BR8005996A (en)	1981-03-31
SE8006587L (en)	1981-03-22
DE2938205A1 (en)	1981-04-09

Publication	Publication Date	Title
DE3166692D1 (en)	1984-11-22	Capacitive pressure transducer
HK89885A (en)	1985-11-22	Capacitive pressure transducer
JPS5764978A (en)	1982-04-20	Capacitive pressure transducer
DE3263468D1 (en)	1985-06-20	Capacitive pressure transducer
DE3374432D1 (en)	1987-12-17	Capacitive pressure transducer
GB2065893B (en)	1983-09-01	Differential pressure transducer
DE3276553D1 (en)	1987-07-16	Silicon-glass-silicon capacitive pressure transducer
GB2134320B (en)	1985-05-01	Pressure transducer
JPS5476192A (en)	1979-06-18	Capacitive pressure transducer
DE3375513D1 (en)	1988-03-03	Multiple range capacitive pressure transducer
DE2967341D1 (en)	1985-02-07	Capacitive pressure sensor
AU560245B2 (en)	1987-04-02	Silicon-glass-silicon capacitive pressure transducer
GB2042258B (en)	1983-02-16	Pressure sensor
GB2015167A (en)	1979-09-05	Capacitive transducer
GB2059071B (en)	1983-07-06	Capacitive pressure transducer
DE3061837D1 (en)	1983-03-17	Pressure transducer
DE3070552D1 (en)	1985-05-30	Variable capacitance pressure transducer assembly
GB2060184B (en)	1983-05-25	Displacement transducer
GB2031592B (en)	1983-02-02	Pressure transducer
GB2054954B (en)	1984-02-15	Pressure transducer
DE3062833D1 (en)	1983-05-26	Pressure transducer
GB2039414B (en)	1983-05-05	Pressure sensor
JPS5683669A (en)	1981-07-08	Pressure transducer
JPS5677714A (en)	1981-06-26	Displacement transducer
GB2068559B (en)	1983-07-27	Fluid pressure transducers

Legal Events

Date	Code	Title	Description
1985-05-22	PCNP	Patent ceased through non-payment of renewal fee