JPS5686331A - Measuring device of gas density - Google Patents
Measuring device of gas densityInfo
- Publication number
- JPS5686331A JPS5686331A JP16273679A JP16273679A JPS5686331A JP S5686331 A JPS5686331 A JP S5686331A JP 16273679 A JP16273679 A JP 16273679A JP 16273679 A JP16273679 A JP 16273679A JP S5686331 A JPS5686331 A JP S5686331A
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- pressure
- temperature
- change
- quartz oscillator
- 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 perform an easy and high-accuracy measurement of the gas density, by giving an operation to the quantity of information by which the oscillation frequency of the Ys-cut quartz oscillator is obtained in the form of the function of temperature along with the oscillation frequency of the AT-cut quartz oscillator obtained as the function of pressure respectively.
CONSTITUTION: The Ys-cut quartz oscillator 1, which is cut in such an angle as to secure an approximation as a straight line between the change of temperature and the change of natural frequency, is incorporated into the oscillating circuit 4 for measurement of the temperature. Then the natural frequency is extracted, and the total frequency is counted in a prescribed time. Thus the temperature T of measurement is obtained by the arithmetic control device 20. At the same time, the At-cut quartz oscillator 2, which is cut in such an angle as to secure a linear approximation between the change of pressure and the change of natural frequency, is incorporated into the oscillating circuit 5 for measurement of the pressure. Then the total frequency is counted in a prescribed time, and thus the pressure P of measurement is obtained by the device 20. Based on the temperature T and pressure P, the density of gas can be obtained by the device 20 and in an easy and high-accuracy way.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16273679A JPS5686331A (en) | 1979-12-17 | 1979-12-17 | Measuring device of gas density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16273679A JPS5686331A (en) | 1979-12-17 | 1979-12-17 | Measuring device of gas density |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5686331A true JPS5686331A (en) | 1981-07-14 |
Family
ID=15760279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16273679A Pending JPS5686331A (en) | 1979-12-17 | 1979-12-17 | Measuring device of gas density |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5686331A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6434547U (en) * | 1987-08-26 | 1989-03-02 | ||
US5421190A (en) * | 1992-06-10 | 1995-06-06 | Asea Brown Boveri Ltd. | Device for measuring gas density |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5414270A (en) * | 1977-07-01 | 1979-02-02 | Bbc Brown Boveri & Cie | Apparatus for measuring density of gaseous medium |
-
1979
- 1979-12-17 JP JP16273679A patent/JPS5686331A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5414270A (en) * | 1977-07-01 | 1979-02-02 | Bbc Brown Boveri & Cie | Apparatus for measuring density of gaseous medium |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6434547U (en) * | 1987-08-26 | 1989-03-02 | ||
US5421190A (en) * | 1992-06-10 | 1995-06-06 | Asea Brown Boveri Ltd. | Device for measuring gas density |
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