JPS562890B2 - - Google Patents
Info
- Publication number
- JPS562890B2 JPS562890B2 JP10911275A JP10911275A JPS562890B2 JP S562890 B2 JPS562890 B2 JP S562890B2 JP 10911275 A JP10911275 A JP 10911275A JP 10911275 A JP10911275 A JP 10911275A JP S562890 B2 JPS562890 B2 JP S562890B2
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
-
- 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
- G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50109112A JPS5233575A (en) | 1975-09-09 | 1975-09-09 | Differential pressure measuring device |
| DE2640235A DE2640235C2 (de) | 1975-09-09 | 1976-09-07 | Differenzdruck-Meßeinrichtung |
| FR7626986A FR2323994A1 (fr) | 1975-09-09 | 1976-09-08 | Manometre differentiel |
| US05/721,635 US4072057A (en) | 1975-09-09 | 1976-09-08 | Differential pressure cell with diaphragm tension and overpressure protection |
| IT26961/76A IT1063497B (it) | 1975-09-09 | 1976-09-08 | Apparecchio per misurare una pressione differenziale |
| GB37520/76A GB1532837A (en) | 1975-09-09 | 1976-09-09 | Apparatus for use in measuring differential fluid pressures |
| CA260,862A CA1057971A (en) | 1975-09-09 | 1976-09-09 | Differential pressure cell with diaphragm tension and overpressure protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50109112A JPS5233575A (en) | 1975-09-09 | 1975-09-09 | Differential pressure measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5233575A JPS5233575A (en) | 1977-03-14 |
| JPS562890B2 true JPS562890B2 (US20080094685A1-20080424-C00004.png) | 1981-01-22 |
Family
ID=14501855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50109112A Granted JPS5233575A (en) | 1975-09-09 | 1975-09-09 | Differential pressure measuring device |
Country Status (7)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829862B2 (ja) * | 1977-05-14 | 1983-06-25 | 富士電機株式会社 | 圧力測定装置 |
| JPS5815049B2 (ja) * | 1977-12-20 | 1983-03-23 | 富士電機株式会社 | 差圧測定装置 |
| US4370890A (en) * | 1980-10-06 | 1983-02-01 | Rosemount Inc. | Capacitive pressure transducer with isolated sensing diaphragm |
| US4735098A (en) * | 1985-11-19 | 1988-04-05 | Kavlico Corporation | Dual diaphragm differential pressure transducer |
| US4996627A (en) * | 1989-01-30 | 1991-02-26 | Dresser Industries, Inc. | High sensitivity miniature pressure transducer |
| US5022270A (en) * | 1989-06-15 | 1991-06-11 | Rosemount Inc. | Extended measurement capability transmitter having shared overpressure protection means |
| US4949581A (en) * | 1989-06-15 | 1990-08-21 | Rosemount Inc. | Extended measurement capability transmitter having shared overpressure protection means |
| US4972717A (en) * | 1989-09-18 | 1990-11-27 | Texas Instruments Incorporated | Pressure transducer apparatus and method for making same |
| DE3932443C1 (US20080094685A1-20080424-C00004.png) * | 1989-09-28 | 1990-12-20 | Endress U. Hauser Gmbh U. Co, 7864 Maulburg, De | |
| DE3933512A1 (de) * | 1989-10-06 | 1991-04-18 | Endress Hauser Gmbh Co | Differenzdruckmessgeraet |
| US5323656A (en) * | 1992-05-12 | 1994-06-28 | The Foxboro Company | Overpressure-protected, polysilicon, capacitive differential pressure sensor and method of making the same |
| DE29711759U1 (de) * | 1997-07-04 | 1998-08-06 | Siemens AG, 80333 München | Differenzdruck-Meßumformer |
| US6047244A (en) * | 1997-12-05 | 2000-04-04 | Rosemount Inc. | Multiple range transition method and apparatus for process control sensors |
| US6038961A (en) * | 1998-03-02 | 2000-03-21 | Rosemount Inc. | Flush mount remote seal |
| US6120033A (en) * | 1998-06-17 | 2000-09-19 | Rosemount Inc. | Process diaphragm seal |
| DE20019067U1 (de) * | 2000-11-09 | 2001-01-18 | Abb Patent Gmbh, 68309 Mannheim | Druckmesseinrichtung |
| DE10249238B4 (de) * | 2002-10-23 | 2006-09-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sensorchip für einen Differenzdrucksensor mit beidseitigem Überlastschutz |
| US7188529B2 (en) * | 2005-01-25 | 2007-03-13 | Yokogawa Electric Corporation | Differential pressure measuring apparatus |
| DE102014104831A1 (de) * | 2014-04-04 | 2015-10-08 | Endress + Hauser Gmbh + Co. Kg | Differenzdrucksensor |
| US10378987B2 (en) | 2017-03-10 | 2019-08-13 | Honeywell International Inc. | Pressure sensor with flow porting having integral flame-proof safety mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2999386A (en) * | 1956-11-02 | 1961-09-12 | Trans Sonics Inc | High precision diaphragm type instruments |
| US3400588A (en) * | 1965-05-27 | 1968-09-10 | Lummus Co | Fluid pressure gauge |
| US3313158A (en) * | 1965-07-23 | 1967-04-11 | Statham Instrument Inc | High overload pressure transducer |
| US3618390A (en) * | 1969-10-27 | 1971-11-09 | Rosemount Eng Co Ltd | Differential pressure transducer |
| US3712143A (en) * | 1971-12-21 | 1973-01-23 | Honeywell Inc | Differential pressure responsive apparatus |
-
1975
- 1975-09-09 JP JP50109112A patent/JPS5233575A/ja active Granted
-
1976
- 1976-09-07 DE DE2640235A patent/DE2640235C2/de not_active Expired
- 1976-09-08 IT IT26961/76A patent/IT1063497B/it active
- 1976-09-08 FR FR7626986A patent/FR2323994A1/fr active Granted
- 1976-09-08 US US05/721,635 patent/US4072057A/en not_active Expired - Lifetime
- 1976-09-09 GB GB37520/76A patent/GB1532837A/en not_active Expired
- 1976-09-09 CA CA260,862A patent/CA1057971A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1532837A (en) | 1978-11-22 |
| IT1063497B (it) | 1985-02-11 |
| JPS5233575A (en) | 1977-03-14 |
| CA1057971A (en) | 1979-07-10 |
| FR2323994B3 (US20080094685A1-20080424-C00004.png) | 1980-10-17 |
| FR2323994A1 (fr) | 1977-04-08 |
| DE2640235A1 (de) | 1977-03-31 |
| US4072057A (en) | 1978-02-07 |
| DE2640235C2 (de) | 1981-09-24 |
