GB913700A - Method for measuring the pressure of a gaseous medium - Google Patents

Method for measuring the pressure of a gaseous medium

Info

Publication number
GB913700A
GB913700A GB85461D GB85461D GB913700A GB 913700 A GB913700 A GB 913700A GB 85461 D GB85461 D GB 85461D GB 85461 D GB85461 D GB 85461D GB 913700 A GB913700 A GB 913700A
Authority
GB
United Kingdom
Prior art keywords
pressure
oscillator
frequency
vessel
capacitor
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.)
Expired
Application number
GB85461D
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.)
BASSES PRESSIONS LAB DES
Original Assignee
BASSES PRESSIONS LAB DES
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 BASSES PRESSIONS LAB DES filed Critical BASSES PRESSIONS LAB DES
Publication of GB913700A publication Critical patent/GB913700A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0005—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

913,700. Determining gas pressure. LABORATOIRE DES BASSES PRESSIONS. March 8, 1961 [April 8, 1960], No. 8541/61. Drawings to Specification. Class 37. The pressure within a vessel is determined by measuring the change in dielectric constant of the dielectric of a capacitor arranged to be subjected to the pressure within the vessel. The capacitor may be housed within the tank or in an external vessel, the plates being firmly secured, and the conductors being kept short to reduce parasitic capacitances. The capacitance is included in the tank circuit of an oscillator and the oscillator frequency may be compared with that of a standard oscillator to produce a beat frequency indicative of the pressure, or a single oscillator may be calibrated by first subjecting the capacitor to atmosphere, the oscillator frequency subsequently giving a direct indication of pressure. A frequency of several megacycles is suggested and some values are given. The electronic circuitry is temperature controlled.
GB85461D 1960-04-08 1961-03-08 Method for measuring the pressure of a gaseous medium Expired GB913700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR823788A FR1261397A (en) 1960-04-08 1960-04-08 Improvements to pressure gauges

Publications (1)

Publication Number Publication Date
GB913700A true GB913700A (en) 1962-12-28

Family

ID=8728916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB85461D Expired GB913700A (en) 1960-04-08 1961-03-08 Method for measuring the pressure of a gaseous medium

Country Status (3)

Country Link
BE (1) BE600427A (en)
FR (1) FR1261397A (en)
GB (1) GB913700A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314493A (en) * 1964-11-04 1967-04-18 Kennedy James Patrick Electrical weigh scale with capacitive transducer
EP0082811A1 (en) * 1981-12-10 1983-06-29 Fritz Studer AG Pneumatic-electric measuring device
CN114323420A (en) * 2021-12-09 2022-04-12 兰州空间技术物理研究所 Portable quantum vacuum measuring device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160713A1 (en) * 1984-05-04 1985-11-13 Kristal Instrumente AG Pressure sensor, in particular for monitoring combustion injection systems
DE3811047A1 (en) * 1988-03-31 1989-10-12 Draegerwerk Ag PROBE FOR CAPACITIVE MEASUREMENT OF PRESSURE IN GASES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314493A (en) * 1964-11-04 1967-04-18 Kennedy James Patrick Electrical weigh scale with capacitive transducer
EP0082811A1 (en) * 1981-12-10 1983-06-29 Fritz Studer AG Pneumatic-electric measuring device
CN114323420A (en) * 2021-12-09 2022-04-12 兰州空间技术物理研究所 Portable quantum vacuum measuring device

Also Published As

Publication number Publication date
FR1261397A (en) 1961-05-19
BE600427A (en) 1961-06-16

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