JPS49107577A - - Google Patents
Info
- Publication number
- JPS49107577A JPS49107577A JP49011721A JP1172174A JPS49107577A JP S49107577 A JPS49107577 A JP S49107577A JP 49011721 A JP49011721 A JP 49011721A JP 1172174 A JP1172174 A JP 1172174A JP S49107577 A JPS49107577 A JP S49107577A
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
- G01L11/004—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces
- G01L11/008—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces electrostatic or electromagnetic counterbalancing forces
-
- 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
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- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00327562A US3832618A (en) | 1973-01-29 | 1973-01-29 | Electronic differential pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS49107577A true JPS49107577A (ja) | 1974-10-12 |
Family
ID=23277069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49011721A Pending JPS49107577A (ja) | 1973-01-29 | 1974-01-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3832618A (ja) |
| JP (1) | JPS49107577A (ja) |
| DE (1) | DE2403874C3 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267636A (ja) * | 1986-05-05 | 1987-11-20 | テキサス インスツルメンツ インコ−ポレイテツド | センサ |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007412A (en) * | 1974-03-25 | 1977-02-08 | The Bendix Corporation | Combined means for sensing an inertial condition and for providing torquing and damping functions |
| US3936717A (en) * | 1974-08-21 | 1976-02-03 | Robertshaw Controls Company | Force balance transmitter and parts therefor or the like |
| US3968693A (en) * | 1975-05-21 | 1976-07-13 | Fischer & Porter Co. | Open-loop differential-pressure transmitter |
| US4431985A (en) * | 1981-03-02 | 1984-02-14 | Honeywell Inc. | Stepper motor system for digitally measuring input quantities |
| US5262641A (en) * | 1991-12-30 | 1993-11-16 | Honeywell Inc. | Compensation mechanism for a pressure sensor having counterweight mechanism |
| US5680109A (en) * | 1996-06-21 | 1997-10-21 | The Foxboro Company | Impulse line blockage detector systems and methods |
| US5902932A (en) | 1998-01-09 | 1999-05-11 | Granville-Phillips Company | Force balancing capacitance manometer |
| US6255635B1 (en) | 1998-07-10 | 2001-07-03 | Ameritherm, Inc. | System and method for providing RF power to a load |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2634747A (en) * | 1950-11-02 | 1953-04-14 | Hagan Corp | Regulating apparatus |
| US2847625A (en) * | 1954-07-09 | 1958-08-12 | Honeywell Regulator Co | Electrical control apparatus |
| US2980835A (en) * | 1959-07-03 | 1961-04-18 | Hagan Chemicals & Controls Inc | Mechanically rebalanced linear motor servosystem |
| US3342072A (en) * | 1965-04-28 | 1967-09-19 | Gen Electric | Pressure-measuring device |
| FR2050632A5 (ja) * | 1969-06-19 | 1971-04-02 | Compteurs Comp D | |
| US3564923A (en) * | 1970-01-12 | 1971-02-23 | Foxboro Co | Differential pressure measuring apparatus |
-
1973
- 1973-01-29 US US00327562A patent/US3832618A/en not_active Expired - Lifetime
-
1974
- 1974-01-28 JP JP49011721A patent/JPS49107577A/ja active Pending
- 1974-01-28 DE DE742403874A patent/DE2403874C3/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267636A (ja) * | 1986-05-05 | 1987-11-20 | テキサス インスツルメンツ インコ−ポレイテツド | センサ |
Also Published As
| Publication number | Publication date |
|---|---|
| US3832618A (en) | 1974-08-27 |
| DE2403874B2 (de) | 1978-06-22 |
| DE2403874C3 (de) | 1979-03-08 |
| DE2403874A1 (de) | 1974-08-01 |