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FR2266879A1 - Static pressure measuring device for sampling system - has capacitive manometer in oscillator alarm circuit - Google Patents

Static pressure measuring device for sampling system - has capacitive manometer in oscillator alarm circuit

Info

Publication number
FR2266879A1
FR2266879A1 FR7411950A FR7411950A FR2266879A1 FR 2266879 A1 FR2266879 A1 FR 2266879A1 FR 7411950 A FR7411950 A FR 7411950A FR 7411950 A FR7411950 A FR 7411950A FR 2266879 A1 FR2266879 A1 FR 2266879A1
Authority
FR
France
Prior art keywords
inductor
sampling system
measuring device
static pressure
pressure measuring
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.)
Granted
Application number
FR7411950A
Other languages
French (fr)
Other versions
FR2266879B1 (en
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.)
PROTECBAT DETECTION ELECT
Original Assignee
PROTECBAT DETECTION ELECT
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 PROTECBAT DETECTION ELECT filed Critical PROTECBAT DETECTION ELECT
Priority to FR7411950A priority Critical patent/FR2266879A1/en
Publication of FR2266879A1 publication Critical patent/FR2266879A1/en
Application granted granted Critical
Publication of FR2266879B1 publication Critical patent/FR2266879B1/fr
Granted 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
    • G01L9/0082—Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means
    • G01L9/0086—Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means using variations in capacitance
    • 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

Landscapes

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

Abstract

A sampling system contains a detector which measures several parameters and includes a pressure detector comprising a capacitive manometer whose plates are connected to an inductor in a transistor oscillator stage. A second inductor is magnetically coupled to this inductor and is tuned by a capacitor in parallel. A tapping on the inductor is connected to a detector diode whose output is filtered. This output varies according to the pressure and is amplified by two transistors which cause an output transistor to conduct to operate a warning relay when a zener diode voltage is exceeded.
FR7411950A 1974-04-04 1974-04-04 Static pressure measuring device for sampling system - has capacitive manometer in oscillator alarm circuit Granted FR2266879A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7411950A FR2266879A1 (en) 1974-04-04 1974-04-04 Static pressure measuring device for sampling system - has capacitive manometer in oscillator alarm circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411950A FR2266879A1 (en) 1974-04-04 1974-04-04 Static pressure measuring device for sampling system - has capacitive manometer in oscillator alarm circuit

Publications (2)

Publication Number Publication Date
FR2266879A1 true FR2266879A1 (en) 1975-10-31
FR2266879B1 FR2266879B1 (en) 1976-10-08

Family

ID=9137301

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411950A Granted FR2266879A1 (en) 1974-04-04 1974-04-04 Static pressure measuring device for sampling system - has capacitive manometer in oscillator alarm circuit

Country Status (1)

Country Link
FR (1) FR2266879A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479452A1 (en) * 1980-03-26 1981-10-02 Bosch Gmbh Robert CONVERTER OF MEASURED SIZES FREQUENCY-FREQUENCY
FR2485192A1 (en) * 1980-06-19 1981-12-24 Telecommunications Sa METHOD AND DEVICE FOR MEASURING PRESSURE OF TIRES, IN PARTICULAR FOR AIRCRAFT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479452A1 (en) * 1980-03-26 1981-10-02 Bosch Gmbh Robert CONVERTER OF MEASURED SIZES FREQUENCY-FREQUENCY
FR2485192A1 (en) * 1980-06-19 1981-12-24 Telecommunications Sa METHOD AND DEVICE FOR MEASURING PRESSURE OF TIRES, IN PARTICULAR FOR AIRCRAFT
EP0042790A1 (en) * 1980-06-19 1981-12-30 Societe Anonyme De Telecommunications (S.A.T.) Tyre-pressure measuring device, especially for airplanes

Also Published As

Publication number Publication date
FR2266879B1 (en) 1976-10-08

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Legal Events

Date Code Title Description
ST Notification of lapse