DE3267649D1 - Temperature-independent acoustical wave treating system - Google Patents

Temperature-independent acoustical wave treating system

Info

Publication number
DE3267649D1
DE3267649D1 DE8282400557T DE3267649T DE3267649D1 DE 3267649 D1 DE3267649 D1 DE 3267649D1 DE 8282400557 T DE8282400557 T DE 8282400557T DE 3267649 T DE3267649 T DE 3267649T DE 3267649 D1 DE3267649 D1 DE 3267649D1
Authority
DE
Germany
Prior art keywords
temperature
treating system
acoustical wave
wave treating
independent acoustical
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
DE8282400557T
Other languages
English (en)
Inventor
Michel Chomiky
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 DE3267649D1 publication Critical patent/DE3267649D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02834—Means for compensation or elimination of undesirable effects of temperature influence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/19—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions
    • G06G7/195—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions using electro- acoustic elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Temperature (AREA)
DE8282400557T 1981-04-08 1982-03-26 Temperature-independent acoustical wave treating system Expired DE3267649D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8107034A FR2503960A1 (fr) 1981-04-08 1981-04-08 Systeme de traitement a ondes elastiques invariant avec la temperature

Publications (1)

Publication Number Publication Date
DE3267649D1 true DE3267649D1 (en) 1986-01-09

Family

ID=9257152

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282400557T Expired DE3267649D1 (en) 1981-04-08 1982-03-26 Temperature-independent acoustical wave treating system

Country Status (7)

Country Link
US (1) US4491931A (de)
EP (1) EP0063069B1 (de)
JP (1) JPS57178411A (de)
CA (1) CA1187951A (de)
DE (1) DE3267649D1 (de)
FR (1) FR2503960A1 (de)
NO (1) NO156590C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2879301B1 (fr) * 2004-12-15 2007-01-26 Temex Sa Transpondeurs a ondes acoustiques de surface
FR2940432B1 (fr) 2008-12-23 2011-01-21 H2I Technologies Dispositif pour quantifier et localiser un signal lumineux module a une frequence predeterminee
JP2012095284A (ja) * 2010-09-30 2012-05-17 Nippon Dempa Kogyo Co Ltd 発振器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809931A (en) * 1973-03-19 1974-05-07 Us Navy Temperature-stabilized transducer device
US3875517A (en) * 1973-11-26 1975-04-01 Us Navy Tracking phase detector for surface wave correlators
US3894286A (en) * 1974-01-28 1975-07-08 Crystal Tech Inc Temperature compensated voltage tunable circuits using surface wave devices
JPS52114246A (en) * 1976-03-22 1977-09-24 Toshiba Corp Elastic surface wave device
FR2346899A1 (fr) * 1976-03-30 1977-10-28 Thomson Csf Procede de modification de l'influence de la temperature sur le temps de propagation des ondes elastiques de surface et dispositif obtenu par ledit procede
GB1568411A (en) * 1978-04-18 1980-05-29 Secr Defence Surface acoustic wave devices
US4354166A (en) * 1980-10-23 1982-10-12 United Technologies Corporation Carrier concentration controlled surface acoustic wave resonator and oscillator

Also Published As

Publication number Publication date
NO156590B (no) 1987-07-06
US4491931A (en) 1985-01-01
JPS57178411A (en) 1982-11-02
EP0063069B1 (de) 1985-11-27
CA1187951A (en) 1985-05-28
EP0063069A1 (de) 1982-10-20
FR2503960B1 (de) 1983-06-10
FR2503960A1 (fr) 1982-10-15
NO821173L (no) 1982-10-11
NO156590C (no) 1987-10-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee