BR9206643A - Aparelho para transmissão de sinais de diferencial de pressão, transmissor em um sistema de comunicação de circuito em anel de corrente bifilar, módulo fixo tendo uma função de transferência de pressão, e processos de compensação de capacitância parasita num transmissor e de variação de uma capacitância durante a fabricação. - Google Patents
Aparelho para transmissão de sinais de diferencial de pressão, transmissor em um sistema de comunicação de circuito em anel de corrente bifilar, módulo fixo tendo uma função de transferência de pressão, e processos de compensação de capacitância parasita num transmissor e de variação de uma capacitância durante a fabricação.Info
- Publication number
- BR9206643A BR9206643A BR9206643A BR9206643A BR9206643A BR 9206643 A BR9206643 A BR 9206643A BR 9206643 A BR9206643 A BR 9206643A BR 9206643 A BR9206643 A BR 9206643A BR 9206643 A BR9206643 A BR 9206643A
- Authority
- BR
- Brazil
- Prior art keywords
- transmitter
- capacitance
- compensation
- variation
- communication system
- 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
- G01L9/12—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
- G01L9/125—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 with temperature compensating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/775,311 US5237285A (en) | 1991-10-18 | 1991-10-18 | Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter |
PCT/US1992/008733 WO1993008479A1 (en) | 1991-10-18 | 1992-10-13 | Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9206643A true BR9206643A (pt) | 1995-04-04 |
Family
ID=25104014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9206643A BR9206643A (pt) | 1991-10-18 | 1992-10-13 | Aparelho para transmissão de sinais de diferencial de pressão, transmissor em um sistema de comunicação de circuito em anel de corrente bifilar, módulo fixo tendo uma função de transferência de pressão, e processos de compensação de capacitância parasita num transmissor e de variação de uma capacitância durante a fabricação. |
Country Status (21)
Country | Link |
---|---|
US (2) | US5237285A (pt) |
EP (1) | EP0608355B1 (pt) |
JP (1) | JP3233404B2 (pt) |
KR (1) | KR100196808B1 (pt) |
AU (1) | AU662934B2 (pt) |
BR (1) | BR9206643A (pt) |
CA (1) | CA2119437A1 (pt) |
DE (1) | DE69229871D1 (pt) |
EG (1) | EG20331A (pt) |
FI (1) | FI941751A (pt) |
HK (1) | HK1009985A1 (pt) |
HU (1) | HU216666B (pt) |
IL (1) | IL103209A (pt) |
MX (1) | MX9205753A (pt) |
MY (1) | MY108023A (pt) |
NO (1) | NO941362L (pt) |
RU (1) | RU2108556C1 (pt) |
SG (1) | SG49261A1 (pt) |
TW (1) | TW287284B (pt) |
WO (1) | WO1993008479A1 (pt) |
ZA (1) | ZA927996B (pt) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5540086A (en) * | 1994-08-30 | 1996-07-30 | Kavlico Corporation | Oil deterioration sensor |
US5824889A (en) * | 1997-03-06 | 1998-10-20 | Kavlico Corporation | Capacitive oil deterioration and contamination sensor |
US5942692A (en) * | 1997-04-10 | 1999-08-24 | Mks Instruments, Inc. | Capacitive pressure sensing method and apparatus avoiding interelectrode capacitance by driving with in-phase excitation signals |
US5929754A (en) * | 1997-12-03 | 1999-07-27 | Kavlico Corporation | High-sensitivity capacitive oil deterioration and level sensor |
US6035694A (en) * | 1999-03-12 | 2000-03-14 | I/O Of Austin, Inc. | Method and apparatus for calibration of stray capacitance mismatch in a closed loop electro-mechanical accelerometer |
US6813954B2 (en) * | 2001-05-25 | 2004-11-09 | Panametrics, Inc. | High sensitivity pressure sensor with long term stability |
US20090015269A1 (en) * | 2007-07-13 | 2009-01-15 | Pinto Gino A | Stray Capacitance Compensation for a Capacitive Sensor |
JP5136593B2 (ja) * | 2010-05-21 | 2013-02-06 | 横河電機株式会社 | 分析装置 |
RU208475U1 (ru) * | 2021-09-22 | 2021-12-21 | Акционерное общество "Научно-исследовательский институт физических измерений" | Емкостный датчик давления |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516132A (en) * | 1968-04-08 | 1970-06-23 | Gen Electric | Process for producing cryogenic capacitors |
US3519923A (en) * | 1968-04-16 | 1970-07-07 | United Aircraft Corp | Capacitive transducer system independent of stray capacitance |
US3949280A (en) * | 1975-02-18 | 1976-04-06 | Mitsumi Electric Co., Ltd. | Miniature variable capacitor and method of manufacture |
US4145619A (en) * | 1976-12-03 | 1979-03-20 | Robertshaw Controls Company | Two wire capacitance transmitter |
GB2048488B (en) * | 1979-04-26 | 1983-04-27 | Rosemount Eng Co Ltd | Differential pressure sensing apparatus |
US4370890A (en) * | 1980-10-06 | 1983-02-01 | Rosemount Inc. | Capacitive pressure transducer with isolated sensing diaphragm |
US4403297A (en) * | 1981-01-02 | 1983-09-06 | Loveland Controls Company | Process control system prover |
US4392382A (en) * | 1981-03-09 | 1983-07-12 | Motorola Inc. | Linearized electronic capacitive pressure transducer |
US4386312A (en) * | 1981-04-24 | 1983-05-31 | Setra Systems, Inc. | Linear capacitive sensor system |
US4626773A (en) * | 1984-10-26 | 1986-12-02 | Exxon Production Research Co. | Method and means for determining rock properties using time-domain dielectric spectroscopy |
US4763063A (en) * | 1985-07-26 | 1988-08-09 | Allied-Signal Inc. | Compact digital pressure sensor circuitry |
US4780662A (en) * | 1987-03-16 | 1988-10-25 | Westinghouse Electric Corp. | Determining eccentricity of insulated wire |
US4816744A (en) * | 1987-05-18 | 1989-03-28 | Laser Metric Systems, Inc. | Method and device for measuring inside diameters using a laser interferometer and capacitance measurements |
US4961055A (en) * | 1989-01-04 | 1990-10-02 | Vickers, Incorporated | Linear capacitance displacement transducer |
GB2229004B (en) * | 1989-03-07 | 1993-09-29 | Rolls Royce Plc | Improvements in or relating to gas turbine engine tip clearance sensors |
US5136250A (en) * | 1989-04-28 | 1992-08-04 | Seagate Technology, Inc. | Capacitance height gauge |
US5065611A (en) * | 1989-08-15 | 1991-11-19 | The Foxboro Company | System for calibrating the span of pressure measuring instruments |
US5070302A (en) * | 1989-09-05 | 1991-12-03 | Eastman Kodak Company | Capacitance probe for measuring a width of a clearance between parts |
DE3933512A1 (de) * | 1989-10-06 | 1991-04-18 | Endress Hauser Gmbh Co | Differenzdruckmessgeraet |
US5163326A (en) * | 1991-03-08 | 1992-11-17 | Rosemount Inc. | Line pressure compensator for a pressure transducer |
US5187985A (en) * | 1991-09-19 | 1993-02-23 | Honeywell Inc. | Amplified pressure transducer |
-
1991
- 1991-10-18 US US07/775,311 patent/US5237285A/en not_active Expired - Lifetime
- 1991-11-02 TW TW080108619A patent/TW287284B/zh active
-
1992
- 1992-09-17 IL IL10320992A patent/IL103209A/en not_active IP Right Cessation
- 1992-10-07 MX MX9205753A patent/MX9205753A/es not_active IP Right Cessation
- 1992-10-13 EG EG61892A patent/EG20331A/xx active
- 1992-10-13 WO PCT/US1992/008733 patent/WO1993008479A1/en active IP Right Grant
- 1992-10-13 KR KR1019940701227A patent/KR100196808B1/ko not_active IP Right Cessation
- 1992-10-13 SG SG1996008507A patent/SG49261A1/en unknown
- 1992-10-13 DE DE69229871T patent/DE69229871D1/de not_active Expired - Lifetime
- 1992-10-13 JP JP50776493A patent/JP3233404B2/ja not_active Expired - Lifetime
- 1992-10-13 BR BR9206643A patent/BR9206643A/pt not_active IP Right Cessation
- 1992-10-13 HU HU9401103A patent/HU216666B/hu not_active IP Right Cessation
- 1992-10-13 EP EP92922499A patent/EP0608355B1/en not_active Expired - Lifetime
- 1992-10-13 CA CA002119437A patent/CA2119437A1/en not_active Abandoned
- 1992-10-13 RU RU94026263A patent/RU2108556C1/ru active
- 1992-10-13 AU AU27935/92A patent/AU662934B2/en not_active Ceased
- 1992-10-14 MY MYPI92001849A patent/MY108023A/en unknown
- 1992-10-16 ZA ZA927996A patent/ZA927996B/xx unknown
-
1993
- 1993-03-17 US US08/032,637 patent/US5281922A/en not_active Expired - Lifetime
-
1994
- 1994-04-15 FI FI941751A patent/FI941751A/fi unknown
- 1994-04-15 NO NO941362A patent/NO941362L/no not_active Application Discontinuation
-
1998
- 1998-09-03 HK HK98110389A patent/HK1009985A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HU216666B (hu) | 1999-08-30 |
KR100196808B1 (ko) | 1999-06-15 |
MY108023A (en) | 1996-07-30 |
US5281922A (en) | 1994-01-25 |
WO1993008479A1 (en) | 1993-04-29 |
TW287284B (pt) | 1996-10-01 |
DE69229871D1 (de) | 1999-09-30 |
ZA927996B (en) | 1994-04-18 |
RU2108556C1 (ru) | 1998-04-10 |
AU2793592A (en) | 1993-05-21 |
US5237285A (en) | 1993-08-17 |
JP3233404B2 (ja) | 2001-11-26 |
IL103209A0 (en) | 1993-02-21 |
IL103209A (en) | 1994-04-12 |
HK1009985A1 (en) | 1999-06-11 |
FI941751A0 (fi) | 1994-04-15 |
CA2119437A1 (en) | 1993-04-29 |
SG49261A1 (en) | 1998-05-18 |
HUT68107A (en) | 1995-05-29 |
EP0608355B1 (en) | 1999-08-25 |
HU9401103D0 (en) | 1994-08-29 |
EP0608355A1 (en) | 1994-08-03 |
NO941362L (no) | 1994-06-08 |
JPH07500188A (ja) | 1995-01-05 |
EG20331A (en) | 1998-10-31 |
NO941362D0 (no) | 1994-04-15 |
FI941751A (fi) | 1994-04-15 |
EP0608355A4 (en) | 1996-04-10 |
AU662934B2 (en) | 1995-09-21 |
MX9205753A (es) | 1993-04-01 |
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Legal Events
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B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |