GB1513530A - Piezoelectric transducers - Google Patents

Piezoelectric transducers

Info

Publication number
GB1513530A
GB1513530A GB772676A GB772676A GB1513530A GB 1513530 A GB1513530 A GB 1513530A GB 772676 A GB772676 A GB 772676A GB 772676 A GB772676 A GB 772676A GB 1513530 A GB1513530 A GB 1513530A
Authority
GB
United Kingdom
Prior art keywords
transducer
counter mass
feb
stack
omnidirectional
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
GB772676A
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.)
FRANCE ARMED FORCES
Original Assignee
FRANCE ARMED FORCES
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
Priority to FR7506080A priority Critical patent/FR2302656B1/fr
Application filed by FRANCE ARMED FORCES filed Critical FRANCE ARMED FORCES
Publication of GB1513530A publication Critical patent/GB1513530A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezo-electric effect or with electrostriction
    • B06B1/0607Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezo-electric effect or with electrostriction using multiple elements
    • B06B1/0611Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezo-electric effect or with electrostriction using multiple elements in a pile
    • B06B1/0618Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezo-electric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezo-electric elements, e.g. 'Tonpilz'
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezo-electric transducers; Electrostrictive transducers
    • H04R17/10Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency

Abstract

1513530 Piezoelectric transducers FRANCE ARMED FORCES MINISTER OF 26 Feb 1976 [27 Feb 1975] 07726/76 Heading H4J A plurality of stack piezolelectric transducer assemblies each having a transmitting bell 4, 5 at one end thereof are connected together at their other ends by a common counter mass 9. The counter mass also serves for fixing the transducer on a support and for providing the electrical connections 10. The length of the transducer is one half the wavelength of the fundamental acoustic vibration of the system. The transducer may be used underwater and may be rotatable through 180 degrees. The housing 11 may be an elastomeric material e.g. a layer of polyurethane resin. An omnidirectional transducer comprising four stack transducers arranged symmetrically about a common central counter mass is illustrated in Figure 3 (not shown). The device of Figure 1 may be surrounded in the region between the bells by an acoustic reflector known per se to give it omnidirectional properties.
GB772676A 1975-02-27 1976-02-26 Piezoelectric transducers Expired GB1513530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7506080A FR2302656B1 (en) 1975-02-27 1975-02-27

Publications (1)

Publication Number Publication Date
GB1513530A true GB1513530A (en) 1978-06-07

Family

ID=9151797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB772676A Expired GB1513530A (en) 1975-02-27 1976-02-26 Piezoelectric transducers

Country Status (3)

Country Link
DE (1) DE2606951A1 (en)
FR (1) FR2302656B1 (en)
GB (1) GB1513530A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164226A (en) * 1983-06-23 1986-03-12 France Etat Electroacoustic transducer
US4996674A (en) * 1985-06-14 1991-02-26 Westinghouse Electric Corp. Double piston acoustic transducer with selectable directivity
GB2247767A (en) * 1990-06-29 1992-03-11 Thomson Csf Bi-frequency acoustic transducer and its use for the production of a low-frequency acoustic antenna
EP1091217A2 (en) * 1999-10-04 2001-04-11 Halliburton Energy Services, Inc. Pressure pulse sensor
DE10031847A1 (en) * 2000-07-04 2002-01-24 Krohne Messtechnik Kg Ultrasonic transducer e.g. for ultrasonic flowmeter, has vibrating mass between head mass and end mass, fixed through piezoelectric elements that vibrate freely with respect to head and end masses
WO2002050572A1 (en) * 2000-12-21 2002-06-27 Institut Francais Du Petrole Device for generating focused elastic waves in a material medium such as underground, and method using same
GB2521762A (en) * 2013-12-27 2015-07-01 Furuno Electric Co Ultrasonic transmitting and/or receiving device
EP2302950A3 (en) * 2009-09-29 2017-04-19 NEC Corporation Acoustic transducer

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6310792B2 (en) * 1981-03-31 1988-03-09 Fujitsu Ltd
DE3306801A1 (en) * 1983-02-26 1984-09-06 Rainer J Haas Spherical high-frequency loudspeaker with piezoelectric drive
EP0209238A3 (en) * 1985-06-14 1989-03-08 Gould Inc. Double piston acoustic transducer with selectable directivity
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.
US4858205A (en) * 1988-08-24 1989-08-15 Halliburton Geophysical Services, Inc. Multi-barrel air gun module
EP0684085A1 (en) * 1994-05-26 1995-11-29 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Open sonar array comprising electroacoustic transducers
FR2728425B1 (en) * 1994-12-15 1997-01-31 France Etat Armement Electroacoustic linear transmission antenna and transmission / reception antenna comprising such antenna

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164226A (en) * 1983-06-23 1986-03-12 France Etat Electroacoustic transducer
US4996674A (en) * 1985-06-14 1991-02-26 Westinghouse Electric Corp. Double piston acoustic transducer with selectable directivity
GB2247767A (en) * 1990-06-29 1992-03-11 Thomson Csf Bi-frequency acoustic transducer and its use for the production of a low-frequency acoustic antenna
EP1091217A2 (en) * 1999-10-04 2001-04-11 Halliburton Energy Services, Inc. Pressure pulse sensor
EP1091217A3 (en) * 1999-10-04 2004-08-04 Halliburton Energy Services, Inc. Pressure pulse sensor
DE10031847A1 (en) * 2000-07-04 2002-01-24 Krohne Messtechnik Kg Ultrasonic transducer e.g. for ultrasonic flowmeter, has vibrating mass between head mass and end mass, fixed through piezoelectric elements that vibrate freely with respect to head and end masses
WO2002050572A1 (en) * 2000-12-21 2002-06-27 Institut Francais Du Petrole Device for generating focused elastic waves in a material medium such as underground, and method using same
FR2818754A1 (en) * 2000-12-21 2002-06-28 Inst Francais Du Petrole DEVICE FOR GENERATING FOCUSED ELASTIC WAVES IN A MATERIAL MEDIUM SUCH AS THE BASEMENT, AND METHOD FOR ITS IMPLEMENTATION
US7104357B2 (en) 2000-12-21 2006-09-12 Institut Francais Du Petrole Device for generating focused elastic waves in a material medium such as underground, and method using same
EP2302950A3 (en) * 2009-09-29 2017-04-19 NEC Corporation Acoustic transducer
GB2521762A (en) * 2013-12-27 2015-07-01 Furuno Electric Co Ultrasonic transmitting and/or receiving device
GB2521762B (en) * 2013-12-27 2020-10-07 Furuno Electric Co Ultrasonic Transmitting and/or Receiving Device, Underwater Detection Apparatus, and Method for Manufacturing Ultrasonic Transmitting and/or Receiving Device

Also Published As

Publication number Publication date
FR2302656A1 (en) 1976-09-24
FR2302656B1 (en) 1978-09-29
DE2606951A1 (en) 1976-09-09

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Legal Events

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