CA1139583A - Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process - Google Patents

Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process

Info

Publication number
CA1139583A
CA1139583A CA000351790A CA351790A CA1139583A CA 1139583 A CA1139583 A CA 1139583A CA 000351790 A CA000351790 A CA 000351790A CA 351790 A CA351790 A CA 351790A CA 1139583 A CA1139583 A CA 1139583A
Authority
CA
Canada
Prior art keywords
delay
variations
oscillators
oscillator
transmission line
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
CA000351790A
Other languages
English (en)
French (fr)
Inventor
Pierre Hartemann
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of CA1139583A publication Critical patent/CA1139583A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/027—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using frequency conversion means which is variable with temperature, e.g. mixer, frequency divider, pulse add/subtract logic circuit
    • 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
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
    • G01L9/0025—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element with acoustic surface waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transducers For Ultrasonic Waves (AREA)
CA000351790A 1979-05-16 1980-05-12 Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process Expired CA1139583A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7912458 1979-05-16
FR7912458A FR2457039A1 (fr) 1979-05-16 1979-05-16 Procede de compensation des derives en temperature dans les dispositifs a ondes de surface et capteur de pression mettant en oeuvre ce procede

Publications (1)

Publication Number Publication Date
CA1139583A true CA1139583A (en) 1983-01-18

Family

ID=9225531

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000351790A Expired CA1139583A (en) 1979-05-16 1980-05-12 Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process

Country Status (7)

Country Link
US (1) US4338575A (enExample)
EP (1) EP0019511B1 (enExample)
JP (1) JPS55153412A (enExample)
CA (1) CA1139583A (enExample)
DE (1) DE3063747D1 (enExample)
FR (1) FR2457039A1 (enExample)
NO (1) NO801451L (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439705A (en) * 1981-12-08 1984-03-27 Corbett James P Oscillating crystal transducer systems with symmetrical temperature compensator
US4639697A (en) * 1984-09-13 1987-01-27 Raytheon Company Temperature compensation circuitry
US6448513B1 (en) * 2001-02-02 2002-09-10 Circuits & Systems Inc. Electronic weighing apparatus utilizing surface acoustic waves
GB2355801B (en) * 1999-10-29 2003-07-30 Transense Technologies Plc Interrogation of surface acoustical wave devices
US6831525B1 (en) 2002-12-17 2004-12-14 Nortel Networks Limited Oscillator arrangements with improved frequency stability
US7945388B2 (en) * 2008-06-25 2011-05-17 The Boeing Company Test bed for in-situ studies
US8033156B2 (en) * 2008-06-25 2011-10-11 The Boeing Company Sensor apparatus and method for detecting impacts
US9536758B1 (en) 2016-05-26 2017-01-03 Anand Deo Time-varying frequency powered semiconductor substrate heat source
US12491111B2 (en) 2016-05-26 2025-12-09 Anand Deo Medical instrument for in vivo heat source
US11152232B2 (en) 2016-05-26 2021-10-19 Anand Deo Frequency and phase controlled transducers and sensing
EP3818586B1 (en) * 2018-07-03 2025-10-15 Deo, Anand Planar transmission line resonator frequency control of localized transducers
AT524956B1 (de) 2021-04-23 2022-11-15 Univ Wien Tech Mikro-elektro-mechanisches system
WO2023064873A1 (en) 2021-10-13 2023-04-20 Deo Anand Conformable polymer for frequency-selectable heating locations

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935704A (en) * 1955-10-03 1960-05-03 Epsco Inc Temperature compensated delay line
US3355949A (en) * 1964-08-17 1967-12-05 Albert A Elwood Crystal temperature and pressure transucer
GB1449841A (en) * 1973-04-09 1976-09-15 Mullard Ltd Oscillators
US3878477A (en) * 1974-01-08 1975-04-15 Hewlett Packard Co Acoustic surface wave oscillator force-sensing devices
US3894286A (en) * 1974-01-28 1975-07-08 Crystal Tech Inc Temperature compensated voltage tunable circuits using surface wave devices
GB1517371A (en) * 1976-01-06 1978-07-12 Secr Defence Acoustic wave devices
US4107626A (en) * 1976-12-20 1978-08-15 Gould Inc. Digital output force sensor using surface acoustic waves
US4100811A (en) * 1977-03-18 1978-07-18 United Technologies Corporation Differential surface acoustic wave transducer
DE2754669A1 (de) * 1977-03-28 1978-10-12 Hewlett Packard Co Messfuehler
GB2033185B (en) * 1978-09-22 1983-05-18 Secr Defence Acoustic wave device with temperature stabilisation

Also Published As

Publication number Publication date
FR2457039A1 (fr) 1980-12-12
EP0019511B1 (fr) 1983-06-15
US4338575A (en) 1982-07-06
NO801451L (no) 1980-11-17
JPS55153412A (en) 1980-11-29
DE3063747D1 (en) 1983-07-21
FR2457039B1 (enExample) 1982-02-26
EP0019511A1 (fr) 1980-11-26

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Legal Events

Date Code Title Description
MKEX Expiry