JPS5686331A - Measuring device of gas density - Google Patents

Measuring device of gas density

Info

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
Application number
JP16273679A
Other languages
Japanese (ja)
Inventor
Tetsuya Okano
Shigeru Ueno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16273679A priority Critical patent/JPS5686331A/en
Publication of JPS5686331A publication Critical patent/JPS5686331A/en
Pending legal-status Critical Current

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  • 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
JP16273679A 1979-12-17 1979-12-17 Measuring device of gas density Pending JPS5686331A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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