JPS5533669A - Reference pressure generator - Google Patents
Reference pressure generatorInfo
- Publication number
- JPS5533669A JPS5533669A JP10734778A JP10734778A JPS5533669A JP S5533669 A JPS5533669 A JP S5533669A JP 10734778 A JP10734778 A JP 10734778A JP 10734778 A JP10734778 A JP 10734778A JP S5533669 A JPS5533669 A JP S5533669A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- converter
- pneumatic
- output
- fed
- 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)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE: To provide a highly accurate reference pressure ganerator by providing an adjustable voltage setting device for generating a set voltage corresponding to a desired standard voltage, an operational amplifier with an integrator, and electropneumatic converter and a pneumatic-electric converter.
CONSTITUTION: The voltage Ei, which is generated by adjusting a constant DC voltage Es fed from a DC constant voltage power source 1 by means of a variable resistance sensitivity adjustor 2 and by dividing the adjusted voltage by means of an equal space voltage divider 3, is fed to an arithmetic device 7 with an integrator and is converted into a current output 9, which is then fed to an electropneumatic converter 10. The output of this converter 10 becomes the output pneumatic pressure 12 of a standard pressure generator and the input of a pneumatic-electric converter 13. The output voltage Ef of the converter 13 acts as a negative feedback voltage against the input of the amplifier 7 and becomes equal to the voltage Ei under a stable condition. If the electricity within a preset range is set in that way, the pneumatic pressure having a value corresponding thereto is obtained. And, it is possible to generate a standard voltage which is excellent in reproducibility and stability by the action of the pneumatic-electric converter 13 of the negative feedback circuit and the high gain of the amplifier 7.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10734778A JPS5533669A (en) | 1978-08-31 | 1978-08-31 | Reference pressure generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10734778A JPS5533669A (en) | 1978-08-31 | 1978-08-31 | Reference pressure generator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5533669A true JPS5533669A (en) | 1980-03-08 |
Family
ID=14456742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10734778A Pending JPS5533669A (en) | 1978-08-31 | 1978-08-31 | Reference pressure generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5533669A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5775513U (en) * | 1980-10-24 | 1982-05-10 | ||
JPS5847712U (en) * | 1981-09-26 | 1983-03-31 | 株式会社島津製作所 | Electro-pneumatic converter |
JPS61170614A (en) * | 1985-01-25 | 1986-08-01 | Shoketsu Kinzoku Kogyo Co Ltd | Electric signal-air pressure conversion unit |
JPS61125715U (en) * | 1985-01-25 | 1986-08-07 | ||
JPS6347251U (en) * | 1986-09-12 | 1988-03-30 | ||
JPS6371627A (en) * | 1986-09-12 | 1988-04-01 | Tokyo Keiki Co Ltd | Testing instrument for pressure gauge |
-
1978
- 1978-08-31 JP JP10734778A patent/JPS5533669A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5775513U (en) * | 1980-10-24 | 1982-05-10 | ||
JPS5847712U (en) * | 1981-09-26 | 1983-03-31 | 株式会社島津製作所 | Electro-pneumatic converter |
JPH04264Y2 (en) * | 1981-09-26 | 1992-01-07 | ||
JPS61170614A (en) * | 1985-01-25 | 1986-08-01 | Shoketsu Kinzoku Kogyo Co Ltd | Electric signal-air pressure conversion unit |
JPS61125715U (en) * | 1985-01-25 | 1986-08-07 | ||
JPS6347251U (en) * | 1986-09-12 | 1988-03-30 | ||
JPS6371627A (en) * | 1986-09-12 | 1988-04-01 | Tokyo Keiki Co Ltd | Testing instrument for pressure gauge |
JPH054624B2 (en) * | 1986-09-12 | 1993-01-20 | Tokimec Inc |
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