JPS55149032A - Pressure fluctuation abnormality detector - Google Patents
Pressure fluctuation abnormality detectorInfo
- Publication number
- JPS55149032A JPS55149032A JP5597579A JP5597579A JPS55149032A JP S55149032 A JPS55149032 A JP S55149032A JP 5597579 A JP5597579 A JP 5597579A JP 5597579 A JP5597579 A JP 5597579A JP S55149032 A JPS55149032 A JP S55149032A
- Authority
- JP
- Japan
- Prior art keywords
- output
- pressure fluctuation
- operated
- voltage
- pressure
- 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 reduce detection time, operate a safety device quickly and minimize the damages at the abnormality by comparing the output of a pressure fluctuation amount setter and the output of a pressure detector in the pressure fluctuation detection of pipe lines of gas or the like.
CONSTITUTION: The voltage signal from a pressure detector 1 is supplied to a differentiator 2 to detect the magnitude of the pressure fluctuations. The output voltage V1 thereof is applied to a voltage comparator 4 and integrator 6. The set voltage V3 of a pressure fluctuation amount setter 3 is applied to the comparator 4 and a switch 5 is operated by the output of the comparator 4 when the magnitude of the pressure fluctuation amount is at the set value or more, by which the integrator 6 is operated. The integrated output V2 and the output V3 of the setter 3 are compared 8 and a relay 9 for external output signal is operated by the compared output, by which a desired safety device is operated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5597579A JPS55149032A (en) | 1979-05-08 | 1979-05-08 | Pressure fluctuation abnormality detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5597579A JPS55149032A (en) | 1979-05-08 | 1979-05-08 | Pressure fluctuation abnormality detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55149032A true JPS55149032A (en) | 1980-11-20 |
Family
ID=13014069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5597579A Pending JPS55149032A (en) | 1979-05-08 | 1979-05-08 | Pressure fluctuation abnormality detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55149032A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59172326U (en) * | 1983-05-02 | 1984-11-17 | トヨタ自動車株式会社 | Instrument circuit |
JPS6017317A (en) * | 1983-07-11 | 1985-01-29 | Hitachi Ltd | Device for preventing detector from malfunction |
JPH0212082U (en) * | 1988-07-06 | 1990-01-25 | ||
JPH0212081U (en) * | 1988-07-06 | 1990-01-25 |
-
1979
- 1979-05-08 JP JP5597579A patent/JPS55149032A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59172326U (en) * | 1983-05-02 | 1984-11-17 | トヨタ自動車株式会社 | Instrument circuit |
JPH0245772Y2 (en) * | 1983-05-02 | 1990-12-04 | ||
JPS6017317A (en) * | 1983-07-11 | 1985-01-29 | Hitachi Ltd | Device for preventing detector from malfunction |
JPH0223809B2 (en) * | 1983-07-11 | 1990-05-25 | Hitachi Ltd | |
JPH0212082U (en) * | 1988-07-06 | 1990-01-25 | ||
JPH0212081U (en) * | 1988-07-06 | 1990-01-25 |
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