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.)
Forces Armees Francaises
Original Assignee
Forces Armees Francaises
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 Forces Armees Francaises filed Critical Forces Armees Francaises
Publication of GB1513530A publication Critical patent/GB1513530A/en
Expired 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'
    • 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
    • H04R17/10—Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

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)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7506080A FR2302656A1 (en) 1975-02-27 1975-02-27 PIEZOELECTRIC TRANSDUCER FOR LOW FREQUENCIES

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) FR2302656A1 (en)
GB (1) GB1513530A (en)

Cited By (9)

* 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
CN115532570A (en) * 2021-06-30 2022-12-30 中国科学院声学研究所 Deep water nondirectional transducer

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57161672A (en) * 1981-03-31 1982-10-05 Fujitsu Ltd Measuring method utilizing ultrasonic wave
DE3306801A1 (en) * 1983-02-26 1984-09-06 Rainer J. 5000 Köln 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 (13)

* 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
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
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
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
CN115532570A (en) * 2021-06-30 2022-12-30 中国科学院声学研究所 Deep water nondirectional transducer

Also Published As

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