EP0209238A3 - Double piston acoustic transducer with selectable directivity - Google Patents

Double piston acoustic transducer with selectable directivity Download PDF

Info

Publication number
EP0209238A3
EP0209238A3 EP86304398A EP86304398A EP0209238A3 EP 0209238 A3 EP0209238 A3 EP 0209238A3 EP 86304398 A EP86304398 A EP 86304398A EP 86304398 A EP86304398 A EP 86304398A EP 0209238 A3 EP0209238 A3 EP 0209238A3
Authority
EP
European Patent Office
Prior art keywords
acoustic transducer
double piston
stacks
transducer
piston acoustic
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.)
Withdrawn
Application number
EP86304398A
Other languages
German (de)
French (fr)
Other versions
EP0209238A2 (en
Inventor
Stephen Cc. Thompson
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.)
Gould Inc
Original Assignee
Gould 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 Gould Inc filed Critical Gould Inc
Publication of EP0209238A2 publication Critical patent/EP0209238A2/en
Publication of EP0209238A3 publication Critical patent/EP0209238A3/en
Withdrawn legal-status Critical Current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
    • B06B1/0611—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 in a pile
    • B06B1/0618—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 in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

A direction selective transducer which includes a center mass fixed between two active transducer element stacks and two head masses. The center mass couples the two stacks and allows the ratio of radiation produced by each head mass to be selected as desired by varying the amplitude and phase of drive voltages applied to the stacks. The transducer can also be used as a directional receiver.
EP86304398A 1985-06-14 1986-06-10 Double piston acoustic transducer with selectable directivity Withdrawn EP0209238A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74518485A 1985-06-14 1985-06-14
US745184 1985-06-14

Publications (2)

Publication Number Publication Date
EP0209238A2 EP0209238A2 (en) 1987-01-21
EP0209238A3 true EP0209238A3 (en) 1989-03-08

Family

ID=24995604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86304398A Withdrawn EP0209238A3 (en) 1985-06-14 1986-06-10 Double piston acoustic transducer with selectable directivity

Country Status (2)

Country Link
EP (1) EP0209238A3 (en)
JP (1) JPS61289800A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2688972B1 (en) * 1988-04-28 1996-10-11 France Etat Armement ELECTRO-ACOUSTIC TRANSDUCERS COMPRISING A FLEXIBLE AND WATERPROOF TRANSMITTING SHELL.
FR2688112B1 (en) * 1988-04-28 1996-10-11 France Etat Armement DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS COMPRISING A SEALED SHELL IN TWO PARTS.
FR2665998B1 (en) * 1988-05-05 1993-10-29 Etat Francais Delegue Armement ELECTRO-ACOUSTIC TRANSDUCERS AND METHODS FOR TRANSMITTING LOW FREQUENCY ACOUSTIC WAVES INTO A LIQUID.
FR2664118A1 (en) * 1990-06-29 1992-01-03 Thomson Csf Dual-frequency acoustic transducer and its use for producing a low-frequency acoustic antenna
FR2720586B1 (en) * 1994-05-26 1996-07-05 France Etat Armement Sonar antenna with removable heads.
WO1996025831A1 (en) * 1995-02-17 1996-08-22 Bolt Beranek And Newman Inc. Underwater acoustic projector
FR2779533B1 (en) * 1998-06-09 2000-08-25 Total Sa HIGH RESOLUTION SEISMIC ACQUISITION DEVICE
EP1060798A1 (en) * 1999-06-18 2000-12-20 Prokic Miodrag Unidirectional single piston ultrasonic transducer
DE10027264C5 (en) * 2000-05-31 2004-10-28 Dr. Hielscher Gmbh ultrasound transducer
JP4983171B2 (en) 2005-11-15 2012-07-25 セイコーエプソン株式会社 Electrostatic transducer, capacitive load drive circuit, circuit constant setting method, ultrasonic speaker, and directional acoustic system
US10065212B2 (en) * 2015-09-04 2018-09-04 Motorola Solutions, Inc. Ultrasonic transmitter
CN112630754B (en) * 2020-11-24 2024-06-25 海鹰企业集团有限责任公司 Directional wave beam generating device, detection system and detection method of transducer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309654A (en) * 1965-09-02 1967-03-14 Gen Dynamics Corp Acoustic apparatus
FR2302656A1 (en) * 1975-02-27 1976-09-24 France Etat PIEZOELECTRIC TRANSDUCER FOR LOW FREQUENCIES

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230399A (en) * 1983-06-14 1984-12-24 Tech Res & Dev Inst Of Japan Def Agency Piezoelectric vibrator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309654A (en) * 1965-09-02 1967-03-14 Gen Dynamics Corp Acoustic apparatus
FR2302656A1 (en) * 1975-02-27 1976-09-24 France Etat PIEZOELECTRIC TRANSDUCER FOR LOW FREQUENCIES

Also Published As

Publication number Publication date
JPS61289800A (en) 1986-12-19
EP0209238A2 (en) 1987-01-21

Similar Documents

Publication Publication Date Title
EP0209238A3 (en) Double piston acoustic transducer with selectable directivity
AU560851B2 (en) Phased array transducer
AU576597B2 (en) W-shaped staples, slotted receiver and array stapler
AU5849780A (en) Piezoelectric transducer
AU549411B2 (en) Variable amplitude vibrator
IL80564A (en) Vibrating beam force transducer with single isolator spring
AU6757681A (en) Direction and frequency independent transducer array
AU530471B2 (en) Ultrasonic transducer
AU4022585A (en) Accelerometer with beam resonator force transducer
EP0316511A3 (en) Transducer structure
AU6755287A (en) Vibrating beam transducer
CA2127254A1 (en) Borehole logging tool
IL80566A0 (en) Vibrating beam force transducer
AU532310B2 (en) Axially directional transducer
AU6552680A (en) Electro-acoustic transducers
AU7307887A (en) Piezoelectric transducer
AU589884B2 (en) Sonic agitator with multi phased vibration bars
AU564091B2 (en) Ultrasonic compound scan with an oscillating transducer
AU3825589A (en) Angle diversity signal separator using mode conversion
WO1990016087A3 (en) Piezoelectric device with air-filled kerf
US3391385A (en) Electromechanical transducer
JPH0427279Y2 (en)
AU5049885A (en) Variflux vibration transducer
AU5179586A (en) Torsional vibration damper
EP0253512A3 (en) Preparation of lead titanate for use in piezoelectric composite transducers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890909

RIN1 Information on inventor provided before grant (corrected)

Inventor name: THOMPSON, STEPHEN CC.