FR2114999A1 - - Google Patents

Info

Publication number
FR2114999A1
FR2114999A1 FR7041766A FR7041766A FR2114999A1 FR 2114999 A1 FR2114999 A1 FR 2114999A1 FR 7041766 A FR7041766 A FR 7041766A FR 7041766 A FR7041766 A FR 7041766A FR 2114999 A1 FR2114999 A1 FR 2114999A1
Authority
FR
France
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
FR7041766A
Other languages
French (fr)
Other versions
FR2114999B1 (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.)
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 FR7041766A priority Critical patent/FR2114999B1/fr
Priority to DE19712157325 priority patent/DE2157325B2/en
Priority to GB5419271A priority patent/GB1376335A/en
Publication of FR2114999A1 publication Critical patent/FR2114999A1/fr
Application granted granted Critical
Publication of FR2114999B1 publication Critical patent/FR2114999B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
FR7041766A 1970-11-20 1970-11-20 Expired FR2114999B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7041766A FR2114999B1 (en) 1970-11-20 1970-11-20
DE19712157325 DE2157325B2 (en) 1970-11-20 1971-11-18 Electrostatic ultrasonic wave transducer
GB5419271A GB1376335A (en) 1970-11-20 1971-11-22 Electrostatic transducers for converting electrical signals into ultrasonic signals and vice versa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7041766A FR2114999B1 (en) 1970-11-20 1970-11-20

Publications (2)

Publication Number Publication Date
FR2114999A1 true FR2114999A1 (en) 1972-07-07
FR2114999B1 FR2114999B1 (en) 1973-11-23

Family

ID=9064485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041766A Expired FR2114999B1 (en) 1970-11-20 1970-11-20

Country Status (3)

Country Link
DE (1) DE2157325B2 (en)
FR (1) FR2114999B1 (en)
GB (1) GB1376335A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199430A5 (en) * 1972-09-08 1974-04-05 Anvar
GB2072458A (en) * 1980-03-03 1981-09-30 Tape Developments Ltd C Electroacoustic transducers
CA1277415C (en) * 1986-04-11 1990-12-04 Lorne A. Whitehead Elastomer membrane enhanced electrostatic transducer
CN111171359B (en) * 2020-01-07 2021-03-02 南京大学 Method for activating polytetrafluoroethylene and application

Also Published As

Publication number Publication date
DE2157325A1 (en) 1972-06-15
DE2157325B2 (en) 1980-06-04
GB1376335A (en) 1974-12-04
FR2114999B1 (en) 1973-11-23

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Legal Events

Date Code Title Description
ST Notification of lapse