GB1376335A - Electrostatic transducers for converting electrical signals into ultrasonic signals and vice versa - Google Patents

Electrostatic transducers for converting electrical signals into ultrasonic signals and vice versa

Info

Publication number
GB1376335A
GB1376335A GB5419271A GB5419271A GB1376335A GB 1376335 A GB1376335 A GB 1376335A GB 5419271 A GB5419271 A GB 5419271A GB 5419271 A GB5419271 A GB 5419271A GB 1376335 A GB1376335 A GB 1376335A
Authority
GB
United Kingdom
Prior art keywords
film
plates
external
polarization
ultrasonic
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
GB5419271A
Other languages
English (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
Publication of GB1376335A publication Critical patent/GB1376335A/en
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)
GB5419271A 1970-11-20 1971-11-22 Electrostatic transducers for converting electrical signals into ultrasonic signals and vice versa Expired GB1376335A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1376335A true GB1376335A (en) 1974-12-04

Family

ID=9064485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5419271A Expired GB1376335A (en) 1970-11-20 1971-11-22 Electrostatic transducers for converting electrical signals into ultrasonic signals and vice versa

Country Status (3)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035318B1 (en) * 1980-03-03 1985-05-02 C-Tape Developments Limited Improvements in electroacoustic transducers
US4885783A (en) * 1986-04-11 1989-12-05 The University Of British Columbia Elastomer membrane enhanced electrostatic transducer
CN111171359A (zh) * 2020-01-07 2020-05-19 南京大学 活化聚四氟乙烯的方法及应用

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199430A5 (enrdf_load_stackoverflow) * 1972-09-08 1974-04-05 Anvar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035318B1 (en) * 1980-03-03 1985-05-02 C-Tape Developments Limited Improvements in electroacoustic transducers
US4885783A (en) * 1986-04-11 1989-12-05 The University Of British Columbia Elastomer membrane enhanced electrostatic transducer
CN111171359A (zh) * 2020-01-07 2020-05-19 南京大学 活化聚四氟乙烯的方法及应用

Also Published As

Publication number Publication date
FR2114999B1 (enrdf_load_stackoverflow) 1973-11-23
DE2157325A1 (de) 1972-06-15
FR2114999A1 (enrdf_load_stackoverflow) 1972-07-07
DE2157325B2 (de) 1980-06-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee