FI905690A0 - Tryckmaetare. - Google Patents
Tryckmaetare.Info
- Publication number
- FI905690A0 FI905690A0 FI905690A FI905690A FI905690A0 FI 905690 A0 FI905690 A0 FI 905690A0 FI 905690 A FI905690 A FI 905690A FI 905690 A FI905690 A FI 905690A FI 905690 A0 FI905690 A0 FI 905690A0
- Authority
- FI
- Finland
- Prior art keywords
- tryckmaetare
- Prior art date
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
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
- G01L9/0075—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a ceramic diaphragm, e.g. alumina, fused quartz, glass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
-
- 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)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8801848A SE461300B (sv) | 1988-05-17 | 1988-05-17 | Tryckmaetare |
PCT/SE1989/000270 WO1989011640A1 (en) | 1988-05-17 | 1989-05-17 | A pressure gauge |
Publications (1)
Publication Number | Publication Date |
---|---|
FI905690A0 true FI905690A0 (fi) | 1990-11-16 |
Family
ID=20372349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI905690A FI905690A0 (fi) | 1988-05-17 | 1990-11-16 | Tryckmaetare. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5249469A (ja) |
EP (1) | EP0417156B1 (ja) |
JP (1) | JPH03504277A (ja) |
DE (1) | DE68909045D1 (ja) |
FI (1) | FI905690A0 (ja) |
SE (1) | SE461300B (ja) |
WO (1) | WO1989011640A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5271277A (en) * | 1991-12-23 | 1993-12-21 | The Boc Group, Inc. | Capacitance pressure transducer |
US5902933A (en) * | 1993-02-22 | 1999-05-11 | Omron Corporation | Pressure sensor and its application |
EP0706038B1 (en) * | 1994-10-07 | 1999-01-13 | Omron Corporation | Capacitive pressure sensor with two chambers |
US20040099061A1 (en) | 1997-12-22 | 2004-05-27 | Mks Instruments | Pressure sensor for detecting small pressure differences and low pressures |
US6612176B2 (en) * | 2000-12-28 | 2003-09-02 | Mks Instruments, Inc. | Pressure transducer assembly with thermal shield |
US6837112B2 (en) * | 2003-03-22 | 2005-01-04 | Stec Inc. | Capacitance manometer having a relatively thick flush diaphragm under tension to provide low hysteresis |
US6993973B2 (en) | 2003-05-16 | 2006-02-07 | Mks Instruments, Inc. | Contaminant deposition control baffle for a capacitive pressure transducer |
US7201057B2 (en) | 2004-09-30 | 2007-04-10 | Mks Instruments, Inc. | High-temperature reduced size manometer |
US7204150B2 (en) | 2005-01-14 | 2007-04-17 | Mks Instruments, Inc. | Turbo sump for use with capacitive pressure sensor |
JP4702311B2 (ja) * | 2007-03-19 | 2011-06-15 | トヨタ自動車株式会社 | コンデンサを備えた電気ユニット |
DE102017126121A1 (de) * | 2017-11-08 | 2019-05-09 | Tdk Electronics Ag | Drucksensorsystem mit Schutz vor einfrierendem Medium |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2714703A (en) * | 1954-10-26 | 1955-08-02 | Avieu Knickerbocker Inc | Transducer |
US3619742A (en) * | 1970-05-21 | 1971-11-09 | Rosemount Eng Co Ltd | Shielded capacitance pressure sensor |
US4168517A (en) * | 1977-11-10 | 1979-09-18 | Lee Shih Y | Capacitive pressure transducer |
JPS56141531A (en) * | 1980-04-04 | 1981-11-05 | Toshiba Corp | Pressure transducer |
US4358814A (en) * | 1980-10-27 | 1982-11-09 | Setra Systems, Inc. | Capacitive pressure sensor |
US4389895A (en) * | 1981-07-27 | 1983-06-28 | Rosemount Inc. | Capacitance pressure sensor |
JPS5826237A (ja) * | 1981-08-07 | 1983-02-16 | Mitsubishi Electric Corp | 圧力センサ |
US4415948A (en) * | 1981-10-13 | 1983-11-15 | United Technologies Corporation | Electrostatic bonded, silicon capacitive pressure transducer |
US4422125A (en) * | 1982-05-21 | 1983-12-20 | The Bendix Corporation | Pressure transducer with an invariable reference capacitor |
DE3404262A1 (de) * | 1983-03-09 | 1984-09-13 | Fuji Electric Co., Ltd., Kawasaki | Kapazitiver messfuehler |
US4562742A (en) * | 1984-08-07 | 1986-01-07 | Bell Microcomponents, Inc. | Capacitive pressure transducer |
FI75426C (fi) * | 1984-10-11 | 1988-06-09 | Vaisala Oy | Absoluttryckgivare. |
US4586109A (en) * | 1985-04-01 | 1986-04-29 | Bourns Instruments, Inc. | Batch-process silicon capacitive pressure sensor |
SE459887B (sv) * | 1987-02-12 | 1989-08-14 | Hydrolab Ab | Tryckgivare |
FI78784C (fi) * | 1988-01-18 | 1989-09-11 | Vaisala Oy | Tryckgivarkonstruktion och foerfarande foer framstaellning daerav. |
US4823603A (en) * | 1988-05-03 | 1989-04-25 | Vacuum General, Inc. | Capacitance manometer having stress relief for fixed electrode |
-
1988
- 1988-05-17 SE SE8801848A patent/SE461300B/sv not_active IP Right Cessation
-
1989
- 1989-05-17 WO PCT/SE1989/000270 patent/WO1989011640A1/en active IP Right Grant
- 1989-05-17 DE DE89906212T patent/DE68909045D1/de not_active Expired - Lifetime
- 1989-05-17 JP JP1505748A patent/JPH03504277A/ja active Pending
- 1989-05-17 EP EP89906212A patent/EP0417156B1/en not_active Expired - Lifetime
- 1989-05-17 US US07/634,196 patent/US5249469A/en not_active Expired - Fee Related
-
1990
- 1990-11-16 FI FI905690A patent/FI905690A0/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO1989011640A1 (en) | 1989-11-30 |
SE461300B (sv) | 1990-01-29 |
SE8801848D0 (sv) | 1988-05-18 |
JPH03504277A (ja) | 1991-09-19 |
EP0417156A1 (en) | 1991-03-20 |
EP0417156B1 (en) | 1993-09-08 |
US5249469A (en) | 1993-10-05 |
DE68909045D1 (en) | 1993-10-14 |
SE8801848L (sv) | 1989-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed | ||
FD | Application lapsed |
Owner name: JOHNSSON & BILLQUIST DEVELOPMENT AB Owner name: HYDROLAB AB |