JPS55122126A - Pressure difference converter - Google Patents
Pressure difference converterInfo
- Publication number
- JPS55122126A JPS55122126A JP2870479A JP2870479A JPS55122126A JP S55122126 A JPS55122126 A JP S55122126A JP 2870479 A JP2870479 A JP 2870479A JP 2870479 A JP2870479 A JP 2870479A JP S55122126 A JPS55122126 A JP S55122126A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- diaphragm
- pressure difference
- measuring
- housing
- 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.)
- Granted
Links
Abstract
PURPOSE: To measure the pressure difference regardless of the pressure of measured fluid by providing a pressure receiving diaphragm, which has distinct stiffness against two fluids to be measured, in the housing wherein a measuring diaphragm for detecting the pressure difference is installed.
CONSTITUTION: The high pressure side flange 2 and low pressure side flange 3 are welded to both sides of the housing respectively, and the introduction hole 4 for high pressure fluid of pressure PH and the one 5 for low pressure fluid of pressure PL are opened in both the flanges 2, 3. A pressure measuring chamber is formed in the housing 1 and the pressure receiving diaphragm 7 and measuring diaphragm 8 are installed in the chamber. The measuring diaphragm 8 is made of a single crystal silicon substrate to form four strain gauges 80. When the diaphragm 8 is bent by the pressure difference, two gauges are tensed and other two ones are pressed, these are connected to the Wheatstone bridge circuit, a change of the resistance is detected as a change of the pressure difference.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2870479A JPS55122126A (en) | 1979-03-14 | 1979-03-14 | Pressure difference converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2870479A JPS55122126A (en) | 1979-03-14 | 1979-03-14 | Pressure difference converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55122126A true JPS55122126A (en) | 1980-09-19 |
JPS6239368B2 JPS6239368B2 (en) | 1987-08-22 |
Family
ID=12255843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2870479A Granted JPS55122126A (en) | 1979-03-14 | 1979-03-14 | Pressure difference converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55122126A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56129832A (en) * | 1980-02-13 | 1981-10-12 | Honeywell Inc | Differential pressure transmitter |
JPS6073427A (en) * | 1983-09-30 | 1985-04-25 | Toshiba Corp | Differential pressure transmitter |
JPS61137246U (en) * | 1985-02-18 | 1986-08-26 | ||
US4787249A (en) * | 1986-06-28 | 1988-11-29 | Eckardt Ag | Differential pressure transducer |
JPH0421938U (en) * | 1990-06-14 | 1992-02-24 |
-
1979
- 1979-03-14 JP JP2870479A patent/JPS55122126A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56129832A (en) * | 1980-02-13 | 1981-10-12 | Honeywell Inc | Differential pressure transmitter |
JPH0248851B2 (en) * | 1980-02-13 | 1990-10-26 | Honeywell Inc | |
JPS6073427A (en) * | 1983-09-30 | 1985-04-25 | Toshiba Corp | Differential pressure transmitter |
JPS61137246U (en) * | 1985-02-18 | 1986-08-26 | ||
US4787249A (en) * | 1986-06-28 | 1988-11-29 | Eckardt Ag | Differential pressure transducer |
JPH0421938U (en) * | 1990-06-14 | 1992-02-24 |
Also Published As
Publication number | Publication date |
---|---|
JPS6239368B2 (en) | 1987-08-22 |
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