[go: up one dir, main page]

GB1363771A - Electroacoustic transducers - Google Patents

Electroacoustic transducers

Info

Publication number
GB1363771A
GB1363771A GB4979671A GB4979671A GB1363771A GB 1363771 A GB1363771 A GB 1363771A GB 4979671 A GB4979671 A GB 4979671A GB 4979671 A GB4979671 A GB 4979671A GB 1363771 A GB1363771 A GB 1363771A
Authority
GB
United Kingdom
Prior art keywords
members
secured
coupling member
rigid
stack
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
GB4979671A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1363771A publication Critical patent/GB1363771A/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'

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

1363771 Piezoelectric devices B TOCQUET and M PERSONNIC 26 Oct 1971 [6 Nov 1970] 49796/71 Heading H4J A stack of piezoelectric plates, e.g. discs, 9 (Fig. 1), alternating with electrodes 10 is secured within a casing 8 by a rigid inner member 1 secured to the stack and constituting one of the electrodes 10, a rigid outer member 2 secured to the easing 8 and a deformable coupling member 3 between the rigid members 1, 2. The rigid members 1, 2 interengage with a clearance fit and define between them a seating in which is disposed the deformable coupling member 3. Casing 8 is fluid-tight and the device is for subaqueous signalling. The coupling member 3 is made of one or several discs of rubber or synthetic elastomer and is secured to the faces of members 1, 2. In use the coupling member 3 is at a nodal plane of vibration. As described, the members 1 and 2 are annular, member 1 being of aluminium alloy and member 2 being of steel. In an alternative embodiment (Fig. 4, not shown) a clip (6) and stop (7) limit the relative movement of the members 1, 2.
GB4979671A 1970-11-06 1971-10-26 Electroacoustic transducers Expired GB1363771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7039959A FR2123070B1 (en) 1970-11-06 1970-11-06

Publications (1)

Publication Number Publication Date
GB1363771A true GB1363771A (en) 1974-08-14

Family

ID=9063844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4979671A Expired GB1363771A (en) 1970-11-06 1971-10-26 Electroacoustic transducers

Country Status (6)

Country Link
US (1) US3769532A (en)
CA (1) CA965180A (en)
DE (1) DE2155071A1 (en)
FR (1) FR2123070B1 (en)
GB (1) GB1363771A (en)
NL (1) NL7113978A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111318438A (en) * 2019-06-03 2020-06-23 北京建筑大学 Piezoelectric stack type high-frequency excitation system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860901A (en) * 1973-06-01 1975-01-14 Raytheon Co Wide band transducer
US4013905A (en) * 1974-01-09 1977-03-22 Exxon Nuclear Company, Inc. Remote acoustic probe
FR2290812A1 (en) * 1974-11-08 1976-06-04 Thomson Csf ELECTROACOUSTIC TRANSDUCER FOR DEEP IMMERSION
US4035761A (en) * 1975-10-20 1977-07-12 Raytheon Company Sonar transducer having inertial inductor
US4352459A (en) * 1979-11-13 1982-10-05 Sono-Tek Corporation Ultrasonic liquid atomizer having an axially-extending liquid feed passage
US4319345A (en) * 1980-05-23 1982-03-09 Halliburton Company Acoustic well-logging transmitting and receiving transducers
FR2570916B1 (en) * 1983-06-23 1988-04-15 France Etat Armement ELECTRO-ACOUSTIC TRANSDUCER AND METHOD FOR TRANSMITTING OR RECEIVING ACOUSTIC WAVES IN SEVERAL BANDWIDTHS
US4704709A (en) * 1985-07-12 1987-11-03 Westinghouse Electric Corp. Transducer assembly with explosive shock protection
CA1277415C (en) * 1986-04-11 1990-12-04 Lorne A. Whitehead Elastomer membrane enhanced electrostatic transducer
US7535801B1 (en) * 2005-04-29 2009-05-19 Lockheed Martin Corporation Multiple frequency sonar transducer
DE102006028211A1 (en) * 2006-06-14 2007-12-20 Valeo Schalter Und Sensoren Gmbh Ultrasonic sensor with membrane

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917642A (en) * 1955-02-21 1959-12-15 Wright Pressure-responsive transducer
US3031591A (en) * 1959-05-27 1962-04-24 Gen Electric Pressure measuring gage
US3328610A (en) * 1964-07-13 1967-06-27 Branson Instr Sonic wave generator
US3321189A (en) * 1964-09-10 1967-05-23 Edison Instr Inc High-frequency ultrasonic generators
US3360664A (en) * 1964-10-30 1967-12-26 Gen Dynamics Corp Electromechanical apparatus
US3474403A (en) * 1966-06-08 1969-10-21 Dynamics Corp Massa Div Electroacoustic transducer with improved shock resistance
US3337844A (en) * 1966-07-06 1967-08-22 Frank P Baltakis Rapid response pressure transducer
US3497729A (en) * 1967-01-20 1970-02-24 Us Navy Mount for acoustic transducers
GB1249464A (en) * 1967-11-08 1971-10-13 Plessey Co Ltd Improvements in or relating to piezo-electric transducers
US3539980A (en) * 1968-11-29 1970-11-10 Dynamics Corp America Underwater electroacoustic transducer which resists intense pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111318438A (en) * 2019-06-03 2020-06-23 北京建筑大学 Piezoelectric stack type high-frequency excitation system

Also Published As

Publication number Publication date
FR2123070B1 (en) 1977-07-08
NL7113978A (en) 1972-05-09
FR2123070A1 (en) 1972-09-08
CA965180A (en) 1975-03-25
DE2155071A1 (en) 1972-06-08
US3769532A (en) 1973-10-30

Similar Documents

Publication Publication Date Title
GB1363771A (en) Electroacoustic transducers
FR2243371A2 (en) Spring with incompressible and compressible leaves - has rigid and elastomeric spacers at outer and inner ends
GB1125449A (en) Improvements in or relating to dampers
GB1365120A (en) Shock absorbing device for draft gear
GB1385705A (en) Fluid pressure transducers
IT1015689B (en) VIBRATING CILIN DRO PRESSURE TRANSDUCER
GB1521592A (en) Hydrophone
GB1068563A (en) Improvements in resilient connecting devices,in particular for use between a vehicleand the engine by which it is driven
GB1241131A (en) Electro-acoustic transducer
GB1152141A (en) Pressure Pad for Presses
GB930284A (en) Torpedoes and like underwater devices
GB1432632A (en) Composite acoustic lenses
GB1283259A (en) Spring hanger
GB1376646A (en) Elastic couplings
GB1415965A (en) Shock absorber device
GB1130037A (en) Improvements in or relating to rolling diaphragms
GB567090A (en) Improvements in fluid-tight glands and packings
GB969795A (en) Improvements in or relating to piezoelectric gauges
ES347242A1 (en) Vibration Generator and Baffle Device therefore
MILAN Hydraulic damping in the laminar state of respiration vibrations of a cylindrical ring in an incompressible viscous fluid at rest(Characteristic equation of respiration vibrations of cylindrical ring in incompressible viscous fluid at rest, obtaining damping coefficient for large induced flow Reynolds numbers)
JPS5846139U (en) Vibrating differential pressure transmitter
SU663929A1 (en) Valve
GB871060A (en) Improvements relating to helicopter undercarriages
FR1271884A (en) System for compressing a fluid by the pressure or vacuum of another fluid transmitted through a membrane and usable in particular for compression and pumping
GB1226309A (en)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee