WO1990016087A3 - Piezoelectric device with air-filled kerf - Google Patents

Piezoelectric device with air-filled kerf

Info

Publication number
WO1990016087A3
WO1990016087A3 PCT/US1990/003247 US9003247W WO9016087A3 WO 1990016087 A3 WO1990016087 A3 WO 1990016087A3 US 9003247 W US9003247 W US 9003247W WO 9016087 A3 WO9016087 A3 WO 9016087A3
Authority
WO
WIPO (PCT)
Prior art keywords
air
piezoelectric device
piezoelectric
kerf
filled
Prior art date
Application number
PCT/US1990/003247
Other languages
French (fr)
Other versions
WO1990016087A2 (en
Inventor
Clyde G Oakley
Original Assignee
Interspec Inc
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 Interspec Inc filed Critical Interspec Inc
Publication of WO1990016087A2 publication Critical patent/WO1990016087A2/en
Publication of WO1990016087A3 publication Critical patent/WO1990016087A3/en

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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/06—Forming electrodes or interconnections, e.g. leads or terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

This invention provides a piezoelectric transducer having low density, high compliance and improved piezoelectric properties. These desirable characteristics are achieved by the preparation of a piezoelectric transducer (100) with an air-filled kerf. The piezoelectric elements (102) are held in place by bonding directly to electrodes (104) so that there is no need to embed the elements in a polymeric matrix.
PCT/US1990/003247 1989-06-07 1990-06-07 Piezoelectric device with air-filled kerf WO1990016087A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36306389A 1989-06-07 1989-06-07
US363,063 1989-06-07

Publications (2)

Publication Number Publication Date
WO1990016087A2 WO1990016087A2 (en) 1990-12-27
WO1990016087A3 true WO1990016087A3 (en) 1991-04-18

Family

ID=23428633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/003247 WO1990016087A2 (en) 1989-06-07 1990-06-07 Piezoelectric device with air-filled kerf

Country Status (1)

Country Link
WO (1) WO1990016087A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297553A (en) * 1992-09-23 1994-03-29 Acuson Corporation Ultrasound transducer with improved rigid backing
JP3243047B2 (en) * 1993-03-12 2002-01-07 呉羽化学工業株式会社 Wave receiving piezoelectric element
JP3324593B2 (en) * 1999-10-28 2002-09-17 株式会社村田製作所 Ultrasonic vibration device
AT503816B1 (en) * 2006-06-06 2008-01-15 Piezocryst Advanced Sensorics PIEZOELECTRIC SENSOR
US8508103B2 (en) * 2009-03-23 2013-08-13 Sonavation, Inc. Piezoelectric identification device and applications thereof
US20190103547A1 (en) 2017-09-29 2019-04-04 Olympus Scientific Solutions Americas Inc. Ultrasonic transducer using aerogel as filler material
CN111403594A (en) * 2020-02-26 2020-07-10 北京信息科技大学 Sensitive element for manufacturing high-sensitivity underwater acoustic transducer and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371805A (en) * 1979-07-20 1983-02-01 Siemens Aktiengesellschaft Ultrasonic transducer arrangement and method for fabricating same
US4640291A (en) * 1985-06-27 1987-02-03 North American Philips Corporation Bi-plane phased array for ultrasound medical imaging
US4728845A (en) * 1987-06-30 1988-03-01 The United States Of America As Represented By The Secretary Of The Navy 1-3-0 Connectivity piezoelectric composite with void

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371805A (en) * 1979-07-20 1983-02-01 Siemens Aktiengesellschaft Ultrasonic transducer arrangement and method for fabricating same
US4640291A (en) * 1985-06-27 1987-02-03 North American Philips Corporation Bi-plane phased array for ultrasound medical imaging
US4728845A (en) * 1987-06-30 1988-03-01 The United States Of America As Represented By The Secretary Of The Navy 1-3-0 Connectivity piezoelectric composite with void

Also Published As

Publication number Publication date
WO1990016087A2 (en) 1990-12-27

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