JPS6449926A - Pressure sensor - Google Patents
Pressure sensorInfo
- Publication number
- JPS6449926A JPS6449926A JP20665487A JP20665487A JPS6449926A JP S6449926 A JPS6449926 A JP S6449926A JP 20665487 A JP20665487 A JP 20665487A JP 20665487 A JP20665487 A JP 20665487A JP S6449926 A JPS6449926 A JP S6449926A
- Authority
- JP
- Japan
- Prior art keywords
- detection coil
- coil
- pressure
- detection
- temperature
- Prior art date
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE:To eliminate the influence of temperature variation by providing a coil for diaphragm displacement detection and a coil for temperature compensation. CONSTITUTION:A diaphragm 2 is displaced with pressure applied to a pressure receiving chamber 11 through a connecting pipe 10 to insert a core 4 with high magnetic permeability into a detection coil 6. The pressure is detected from the inductance of the detection coil 6 which varies with the insertion depth of the core 4. A 2nd detection coil 7 of the same structure with the detection coil 6 is arranged adjacently and the detection coil 6 and 2nd detection coil 7 are used as elements of one side of a bridge circuit respectively. Then even if the impedance of the detection coil 6 varies with temperature, that is canceled by the similar variation of the 2nd detection coil. Then the pressure is accurately detected without any influence of temperature variation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20665487A JPS6449926A (en) | 1987-08-20 | 1987-08-20 | Pressure sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20665487A JPS6449926A (en) | 1987-08-20 | 1987-08-20 | Pressure sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6449926A true JPS6449926A (en) | 1989-02-27 |
Family
ID=16526929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20665487A Pending JPS6449926A (en) | 1987-08-20 | 1987-08-20 | Pressure sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6449926A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06323802A (en) * | 1993-05-13 | 1994-11-25 | Techno Excel Kk | Sensor |
JPH06323935A (en) * | 1993-05-13 | 1994-11-25 | Techno Excel Kk | Sensor |
JP2002107250A (en) * | 2000-09-29 | 2002-04-10 | Tadatoshi Goto | Pressure gauge |
-
1987
- 1987-08-20 JP JP20665487A patent/JPS6449926A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06323802A (en) * | 1993-05-13 | 1994-11-25 | Techno Excel Kk | Sensor |
JPH06323935A (en) * | 1993-05-13 | 1994-11-25 | Techno Excel Kk | Sensor |
JP2002107250A (en) * | 2000-09-29 | 2002-04-10 | Tadatoshi Goto | Pressure gauge |
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