GB985046A - Improvements in or relating to pressure gauges - Google Patents

Improvements in or relating to pressure gauges

Info

Publication number
GB985046A
GB985046A GB3529761A GB3529761A GB985046A GB 985046 A GB985046 A GB 985046A GB 3529761 A GB3529761 A GB 3529761A GB 3529761 A GB3529761 A GB 3529761A GB 985046 A GB985046 A GB 985046A
Authority
GB
United Kingdom
Prior art keywords
pressure
fluid
electrodes
recording apparatus
chamber
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
GB3529761A
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.)
Pechiney SA
Original Assignee
Pechiney SA
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 Pechiney SA filed Critical Pechiney SA
Publication of GB985046A publication Critical patent/GB985046A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/186—Hydrophones
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
    • 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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/008—Transmitting or indicating the displacement of flexible diaphragms using piezoelectric devices

Abstract

985,046. Measuring electrically. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTRO-METALLURGIQUES. Sept.29, 1961 [Oct. 6, 1960], No. 35297/61. Heading G1N. In a pressure gauge one or more anisotropic piezo-electric elements are mounted in and subjected to the pressure of a fluid medium, at least one element having apair of electrodes to pick up e.m.f.s generated by the said pressure, and the or each element being mechanically biased by a force directed transversely of the electrodes. The embodiment shown, which is adapted for submarine use in the measurement of "microseisms", comprises a box 1 divided into two compartments 10, 20, the former being open to hydrostatic pressure through holes 3 in a cover 2, said pressure being transmitted via an elastic membrane 11 to a gasless inert liquid 13, e.g. silicone oil, surrounding spring-biased anisotropic piezo-electric crystals 12, e.g. discs of barium titanate. The voltage developed across the crystals is fed via a fluid-tight, insulated conductor 30 to the grid of an electrometer tube 21 in chamber 20, the output of the tube being supplied via a coupling device 5 to measuring and/or recording apparatus, e.g. a voltmeter. The time constant and sensitivity of the device are determined by a capacitor 22 also connected to the conductor 30. Chamber 20 is filled with a fluid under pressure. The gauge may be housed in a container with batteries and recording apparatus.
GB3529761A 1960-10-06 1961-09-29 Improvements in or relating to pressure gauges Expired GB985046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR840473A FR1282560A (en) 1960-10-06 1960-10-06 High sensitivity piezoelectric manometer; application to measurements concerning micro-earthquakes

Publications (1)

Publication Number Publication Date
GB985046A true GB985046A (en) 1965-03-03

Family

ID=8740285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3529761A Expired GB985046A (en) 1960-10-06 1961-09-29 Improvements in or relating to pressure gauges

Country Status (2)

Country Link
FR (1) FR1282560A (en)
GB (1) GB985046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173253A2 (en) * 1984-08-30 1986-03-05 Lang Apparatebau Gmbh Dosing control device and method for use of the device
GB2170008A (en) * 1985-01-19 1986-07-23 Benham Vibration detecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173253A2 (en) * 1984-08-30 1986-03-05 Lang Apparatebau Gmbh Dosing control device and method for use of the device
EP0173253A3 (en) * 1984-08-30 1987-10-28 Lang Apparatebau Gmbh Dosing control device and method for use of the device
GB2170008A (en) * 1985-01-19 1986-07-23 Benham Vibration detecting device

Also Published As

Publication number Publication date
FR1282560A (en) 1962-01-27

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