FR2466164B1 - - Google Patents

Info

Publication number
FR2466164B1
FR2466164B1 FR7923935A FR7923935A FR2466164B1 FR 2466164 B1 FR2466164 B1 FR 2466164B1 FR 7923935 A FR7923935 A FR 7923935A FR 7923935 A FR7923935 A FR 7923935A FR 2466164 B1 FR2466164 B1 FR 2466164B1
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.)
Expired
Application number
FR7923935A
Other versions
FR2466164A1 (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.)
Laboratoires dElectronique Philips SAS
Original Assignee
Laboratoires dElectronique et de Physique Appliquee
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 Laboratoires dElectronique et de Physique Appliquee filed Critical Laboratoires dElectronique et de Physique Appliquee
Priority to FR7923935A priority Critical patent/FR2466164A1/fr
Priority to GB8030509A priority patent/GB2059716B/en
Priority to DE19803035675 priority patent/DE3035675A1/de
Priority to JP13243580A priority patent/JPS5657972A/ja
Publication of FR2466164A1 publication Critical patent/FR2466164A1/fr
Application granted granted Critical
Publication of FR2466164B1 publication Critical patent/FR2466164B1/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
    • B06B1/0607—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 multiple elements
    • B06B1/0622—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 multiple elements on one surface
    • B06B1/0625—Annular array
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR7923935A 1979-09-26 1979-09-26 Transducteur ultrasonore a sensibilite variable et dispositif d'emission-reception ultrasonore equipe de ce transducteur Granted FR2466164A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7923935A FR2466164A1 (fr) 1979-09-26 1979-09-26 Transducteur ultrasonore a sensibilite variable et dispositif d'emission-reception ultrasonore equipe de ce transducteur
GB8030509A GB2059716B (en) 1979-09-26 1980-09-22 Device and transducer for ultra sound echographic examination
DE19803035675 DE3035675A1 (de) 1979-09-26 1980-09-22 Vorrichtung fuer echographische untersuchung
JP13243580A JPS5657972A (en) 1979-09-26 1980-09-25 Ultrasonic toner diagnosing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7923935A FR2466164A1 (fr) 1979-09-26 1979-09-26 Transducteur ultrasonore a sensibilite variable et dispositif d'emission-reception ultrasonore equipe de ce transducteur

Publications (2)

Publication Number Publication Date
FR2466164A1 FR2466164A1 (fr) 1981-03-27
FR2466164B1 true FR2466164B1 (fr) 1982-11-19

Family

ID=9230032

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923935A Granted FR2466164A1 (fr) 1979-09-26 1979-09-26 Transducteur ultrasonore a sensibilite variable et dispositif d'emission-reception ultrasonore equipe de ce transducteur

Country Status (4)

Country Link
JP (1) JPS5657972A (fr)
DE (1) DE3035675A1 (fr)
FR (1) FR2466164A1 (fr)
GB (1) GB2059716B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211342A (en) * 1981-06-22 1982-12-25 Hitachi Medical Corp Ultrasonic imaging apparatus
JPS5985973A (ja) * 1982-11-08 1984-05-18 Hitachi Medical Corp 多重リング電子集束形超音波装置
JP2633576B2 (ja) * 1987-09-10 1997-07-23 株式会社東芝 超音波診断装置
US5410205A (en) * 1993-02-11 1995-04-25 Hewlett-Packard Company Ultrasonic transducer having two or more resonance frequencies
US5434827A (en) * 1993-06-15 1995-07-18 Hewlett-Packard Company Matching layer for front acoustic impedance matching of clinical ultrasonic tranducers
US5460181A (en) * 1994-10-06 1995-10-24 Hewlett Packard Co. Ultrasonic transducer for three dimensional imaging
US5465725A (en) * 1993-06-15 1995-11-14 Hewlett Packard Company Ultrasonic probe
US5345139A (en) * 1993-08-27 1994-09-06 Hewlett-Packard Company Electrostrictive ultrasonic probe having expanded operating temperature range
US5585546A (en) * 1994-10-31 1996-12-17 Hewlett-Packard Company Apparatus and methods for controlling sensitivity of transducers
FR2790635B1 (fr) 1999-03-05 2001-04-13 France Etat Dispositif triboelectrique
JP5874208B2 (ja) * 2011-06-15 2016-03-02 セイコーエプソン株式会社 圧電センサー装置、超音波センサー、および圧電センサー装置の駆動方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372245A (en) * 1963-01-25 1968-03-05 Matsushita Electric Ind Co Ltd Electrostatic electro-acoustic transducer
FR1366825A (fr) * 1963-05-15 1964-07-17 Csf Projecteur d'ultra-sons à électrostriction
DE2202989A1 (de) * 1972-01-21 1973-07-26 Siemens Ag Fokussierter ultraschallwandler

Also Published As

Publication number Publication date
FR2466164A1 (fr) 1981-03-27
GB2059716B (en) 1983-07-06
DE3035675A1 (de) 1981-06-04
GB2059716A (en) 1981-04-23
JPS5657972A (en) 1981-05-20

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Legal Events

Date Code Title Description
ST Notification of lapse