FR2273460A6 - Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer - Google Patents

Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer

Info

Publication number
FR2273460A6
FR2273460A6 FR7303200A FR7303200A FR2273460A6 FR 2273460 A6 FR2273460 A6 FR 2273460A6 FR 7303200 A FR7303200 A FR 7303200A FR 7303200 A FR7303200 A FR 7303200A FR 2273460 A6 FR2273460 A6 FR 2273460A6
Authority
FR
France
Prior art keywords
mixer
ultrasonic transducer
measurement device
temperature measurement
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.)
Expired
Application number
FR7303200A
Other languages
French (fr)
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7303200A priority Critical patent/FR2273460A6/en
Application granted granted Critical
Publication of FR2273460A6 publication Critical patent/FR2273460A6/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

The sensor unit is for use in the process described in 1564611, and particularly suitable for measuring the temperatures of rapidly moving objects and in the case of a solid medium for ultrasonic wave propagation. The unit has two temperature sensitive elements, which are piezoelectric crystals driving two distinct oscillators, and a mixer which receives the respective oscillations at different frequencies and provides a resultant oscillation at the difference frequency. The mixer precedes an amplifier coupled to an ultrasonic transducer.
FR7303200A 1973-01-30 1973-01-30 Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer Expired FR2273460A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7303200A FR2273460A6 (en) 1973-01-30 1973-01-30 Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7303200A FR2273460A6 (en) 1973-01-30 1973-01-30 Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer

Publications (1)

Publication Number Publication Date
FR2273460A6 true FR2273460A6 (en) 1975-12-26

Family

ID=9114053

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7303200A Expired FR2273460A6 (en) 1973-01-30 1973-01-30 Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer

Country Status (1)

Country Link
FR (1) FR2273460A6 (en)

Similar Documents

Publication Publication Date Title
GB1356478A (en) Oscillatory circuit for ultrasonic cleaning apparatus
GB1483735A (en) Acoustic wave oscillator
GB1449841A (en) Oscillators
Soga et al. Elastic properties of tektites measured by resonant sphere technique
US5149197A (en) Piezo electric resonator temperature sensor
FR2318420A1 (en) Pressure or distance measurement using ultrasonics - involves compressible medium in which propagation velocity dependence on density is known
FR2273460A6 (en) Remote temperature measurement device - has two temp sensitive quartz oscillator, mixer and ultrasonic transducer
JPS5675686A (en) Ultrasonic video device
FR2615672B1 (en) OSCILLATOR WITH TEMPERATURE-COMPENSATED PIEZOELECTRIC RESONATOR, HIGH SPECTRAL PURITY AND FREQUENCY CONTROLLABLE
GB1246542A (en) Acoustic thermometers
GB1518868A (en) Process and apparatus for the determination of the inversion temperature of a quartz piezoelectric resonator elemen
SU847099A1 (en) Piezo-resonance vacuum meter
GB1381913A (en) Densitometer
GB1483344A (en) Pressure sensitive devices
JPS55109912A (en) Length measuring instrument
SU495544A1 (en) The method of measuring the level of liquid and bulk media
SU830163A2 (en) Pressure sensor with frequency output signal
SU119700A1 (en) Temperature measuring device
GB1383952A (en) Densitometers
SU440598A1 (en) Ultrasound attenuation measurement method
SU459842A1 (en) The method of controlling the temperature of the quartz resonator
SU482670A1 (en) Device for measuring the speed of propagation of ultrasound
SU401917A1 (en) METHOD FOR DETERMINING THE INSTABILITY OF THE ELASTIC PROPERTIES OF QUARTZ GLASS
SU599204A1 (en) Device for measuring acoustic parameters of substances
Ikeda Precise determination of wavelength with an ultrasonic interferometer