FR2434541A1 - Transducteur ultrasonique insensible a la phase - Google Patents

Transducteur ultrasonique insensible a la phase

Info

Publication number
FR2434541A1
FR2434541A1 FR7918927A FR7918927A FR2434541A1 FR 2434541 A1 FR2434541 A1 FR 2434541A1 FR 7918927 A FR7918927 A FR 7918927A FR 7918927 A FR7918927 A FR 7918927A FR 2434541 A1 FR2434541 A1 FR 2434541A1
Authority
FR
France
Prior art keywords
transducer
ultrasonic transducer
phase insensitive
electrodes
crystal
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.)
Granted
Application number
FR7918927A
Other languages
English (en)
Other versions
FR2434541B1 (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.)
National Aeronautics and Space Administration NASA
Original Assignee
National Aeronautics and Space Administration NASA
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 National Aeronautics and Space Administration NASA filed Critical National Aeronautics and Space Administration NASA
Publication of FR2434541A1 publication Critical patent/FR2434541A1/fr
Application granted granted Critical
Publication of FR2434541B1 publication Critical patent/FR2434541B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • B06B1/0681—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface and a damping structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

a. Transducteur ultrasonique insensible à la phase. b. Ce transducteur comprend un cristal de sulfure de cadmium ayant subi un recuit pendant une période de temps déterminée et à une température déterminée afin de produire une atténuation acoustique pratiquement maximale à la fréquence de travail du transducteur. Deux électrodes sont fixées au cristal, des moyens d'amplification et un système de traitement de signaux étant connectés à l'une des électrodes pour produire un récepteur ultrasonique. c. Essais non destructifs de matériaux, diagnostics médicaux et recherches biologiques.
FR7918927A 1978-07-26 1979-07-23 Transducteur ultrasonique insensible a la phase Granted FR2434541A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/928,130 US4195244A (en) 1978-07-26 1978-07-26 CdS Solid state phase insensitive ultrasonic transducer

Publications (2)

Publication Number Publication Date
FR2434541A1 true FR2434541A1 (fr) 1980-03-21
FR2434541B1 FR2434541B1 (fr) 1985-03-15

Family

ID=25455780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7918927A Granted FR2434541A1 (fr) 1978-07-26 1979-07-23 Transducteur ultrasonique insensible a la phase

Country Status (7)

Country Link
US (1) US4195244A (fr)
JP (1) JPS5518199A (fr)
CA (1) CA1136260A (fr)
CH (1) CH644729A5 (fr)
DE (1) DE2929766A1 (fr)
FR (1) FR2434541A1 (fr)
GB (1) GB2029091B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079098A (en) * 1980-06-23 1982-01-13 Space Age Electronics Ltd Transducers
JPS6051750A (ja) * 1983-08-30 1985-03-23 Murata Mfg Co Ltd 防振複合体
GB9206943D0 (en) * 1992-03-31 1992-05-13 Ngk Insulators Ltd Ultrasonic transducer
US5446333A (en) * 1992-09-21 1995-08-29 Ngk Insulators, Ltd. Ultrasonic transducers
JPH08105871A (ja) * 1994-10-04 1996-04-23 Ngk Insulators Ltd 音響電気効果型超音波送受信装置及び超音波送受信方法
KR101214764B1 (ko) * 2006-11-14 2012-12-21 가고시마 유니버시티 약물주입장치
WO2012083459A1 (fr) * 2010-12-21 2012-06-28 Tpp Energy Solutions Inc. Dispositif pour augmenter le rendement d'un moteur à combustion interne

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093758A (en) * 1960-04-13 1963-06-11 Bell Telephone Labor Inc Piezoelectric devices utilizing cadmium sulfide
FR1412948A (fr) * 1964-10-30 1965-10-01 Western Electric Co Transducteurs piézoélectriques ultrasoniques
US3240962A (en) * 1961-10-24 1966-03-15 Bell Telephone Labor Inc Piezoelectric transducer
GB1080029A (en) * 1963-10-31 1967-08-23 Western Electric Co Improvements in and relating to piezoelectric devices
US3422371A (en) * 1967-07-24 1969-01-14 Sanders Associates Inc Thin film piezoelectric oscillator
US3671784A (en) * 1969-07-29 1972-06-20 Philips Corp Piezo-electric transducers having variable sensitivity between the boundaries of the piezo-electric crystal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145354A (en) * 1960-04-20 1964-08-18 Bell Telephone Labor Inc Circuit element
US3234488A (en) * 1960-09-12 1966-02-08 Bell Telephone Labor Inc Light modulable circuit element
US3183359A (en) * 1961-12-21 1965-05-11 Bell Telephone Labor Inc Optical modulator employing reflection from piezolelectric-semiconductive material
US3671193A (en) * 1970-02-11 1972-06-20 Stanley V Jaskolski Zinc oxide crystal bulk-effect oscillator and method of preparing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093758A (en) * 1960-04-13 1963-06-11 Bell Telephone Labor Inc Piezoelectric devices utilizing cadmium sulfide
US3240962A (en) * 1961-10-24 1966-03-15 Bell Telephone Labor Inc Piezoelectric transducer
GB1080029A (en) * 1963-10-31 1967-08-23 Western Electric Co Improvements in and relating to piezoelectric devices
FR1412948A (fr) * 1964-10-30 1965-10-01 Western Electric Co Transducteurs piézoélectriques ultrasoniques
US3422371A (en) * 1967-07-24 1969-01-14 Sanders Associates Inc Thin film piezoelectric oscillator
US3671784A (en) * 1969-07-29 1972-06-20 Philips Corp Piezo-electric transducers having variable sensitivity between the boundaries of the piezo-electric crystal

Also Published As

Publication number Publication date
CH644729A5 (de) 1984-08-15
CA1136260A (fr) 1982-11-23
GB2029091B (en) 1983-03-02
JPS5518199A (en) 1980-02-08
FR2434541B1 (fr) 1985-03-15
DE2929766A1 (de) 1980-02-07
US4195244A (en) 1980-03-25
GB2029091A (en) 1980-03-12

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Legal Events

Date Code Title Description
ST Notification of lapse