ATE118917T1 - Anpassungselement. - Google Patents

Anpassungselement.

Info

Publication number
ATE118917T1
ATE118917T1 AT89309495T AT89309495T ATE118917T1 AT E118917 T1 ATE118917 T1 AT E118917T1 AT 89309495 T AT89309495 T AT 89309495T AT 89309495 T AT89309495 T AT 89309495T AT E118917 T1 ATE118917 T1 AT E118917T1
Authority
AT
Austria
Prior art keywords
adjustment item
voids
glass
disclosed
solid material
Prior art date
Application number
AT89309495T
Other languages
English (en)
Inventor
Michael John Gill
Original Assignee
British Gas Plc
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 British Gas Plc filed Critical British Gas Plc
Application granted granted Critical
Publication of ATE118917T1 publication Critical patent/ATE118917T1/de

Links

Classifications

    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Burglar Alarm Systems (AREA)
  • Impact Printers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Semiconductor Lasers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measuring Fluid Pressure (AREA)
  • Surgical Instruments (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Paper (AREA)
  • Glass Compositions (AREA)
AT89309495T 1988-09-29 1989-09-19 Anpassungselement. ATE118917T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8822903A GB2225426B (en) 1988-09-29 1988-09-29 A transducer

Publications (1)

Publication Number Publication Date
ATE118917T1 true ATE118917T1 (de) 1995-03-15

Family

ID=10644471

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89309495T ATE118917T1 (de) 1988-09-29 1989-09-19 Anpassungselement.

Country Status (12)

Country Link
US (1) US5093810A (de)
EP (1) EP0361757B1 (de)
JP (1) JP2559144B2 (de)
KR (1) KR930010299B1 (de)
AT (1) ATE118917T1 (de)
AU (1) AU607085B2 (de)
CA (1) CA1335213C (de)
DE (1) DE68921276T2 (de)
DK (1) DK475189A (de)
ES (1) ES2068251T3 (de)
GB (1) GB2225426B (de)
HK (1) HK1007033A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0528910A4 (en) * 1990-05-14 1993-12-22 Commonwealth Scientific And Industrial Research Organization A coupling device
GB2246349B (en) * 1990-07-24 1994-06-22 British Gas Plc Method for bonding together hollow glass spheres
DE4115447C2 (de) * 1991-05-11 1994-01-27 Schott Glaswerke Vorrichtung zur Kontrolle der Zerstörung von Konkrementen
GB2276240B (en) * 1993-03-16 1997-01-15 British Gas Plc Fluid flowmeter
DE4325398C1 (de) * 1993-07-29 1994-07-21 Grieshaber Vega Kg Schallwandler mit einer chemisch beständigen Anpaßschicht und Verfahren zur Herstellung einer solchen Anpaßschicht
DE19917429A1 (de) * 1999-04-19 2000-10-26 Sonident Anstalt Vaduz Impulsschallwandler
KR100423381B1 (ko) * 1999-11-12 2004-03-18 마쯔시다덴기산교 가부시키가이샤 음향 매칭 부재, 이를 제조하는 방법, 및 음향 매칭 부재를 사용하는 초음파 송수신기
US6381196B1 (en) * 2000-10-26 2002-04-30 The United States Of America As Represented By The Secretary Of The Navy Sintered viscoelastic particle vibration damping treatment
US6989625B2 (en) * 2002-01-28 2006-01-24 Matsushita Electric Industrial Co., Ltd. Acoustic matching layer, ultrasonic transducer and ultrasonic flowmeter
CN1318824C (zh) * 2002-01-28 2007-05-30 松下电器产业株式会社 超声波发送接收器及超声波流量计
US6788620B2 (en) 2002-05-15 2004-09-07 Matsushita Electric Industrial Co Ltd Acoustic matching member, ultrasound transducer, ultrasonic flowmeter and method for manufacturing the same
JP3764162B2 (ja) * 2002-12-20 2006-04-05 松下電器産業株式会社 超音波送受波器およびその製造方法、ならびに超音波流量計
JP4717634B2 (ja) * 2003-08-22 2011-07-06 パナソニック株式会社 音響整合体およびその製造方法、ならびに超音波センサおよび超音波送受信装置
JP4638854B2 (ja) * 2006-09-29 2011-02-23 富士フイルム株式会社 超音波用探触子の製造方法
JP2008147731A (ja) * 2006-12-06 2008-06-26 Matsushita Electric Ind Co Ltd 超音波センサ
JP2014137254A (ja) * 2013-01-16 2014-07-28 Panasonic Corp 音響整合部材
JP6399390B2 (ja) * 2013-12-27 2018-10-03 パナソニックＩｐマネジメント株式会社 スピーカおよびａｖ機器
CN108605186B (zh) 2016-06-09 2021-03-09 松下知识产权经营株式会社 层叠体、超声波收发器和超声波流量计

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198885A (en) * 1932-04-21 1940-04-30 Celotex Corp Composite thermal insulating unit
US2707755A (en) * 1950-07-20 1955-05-03 Sperry Prod Inc High absorption backings for ultrasonic crystals
US2797201A (en) * 1953-05-11 1957-06-25 Standard Oil Co Process of producing hollow particles and resulting product
US3515910A (en) * 1968-11-12 1970-06-02 Us Navy Acoustic absorbing material
US3788140A (en) * 1972-02-25 1974-01-29 Gen Signal Corp Electroacoustical flow metering apparatus
US3855847A (en) * 1972-06-20 1974-12-24 Westinghouse Electric Corp Acoustic emission transducer and monitoring system
IT1016750B (it) * 1974-08-01 1977-06-20 Fiat Spa Dispositivo per effettuare median te ultrasuoni la misura della por tata d aria in massa nel condotto di aspirazione di motori a combu stione interna
GB1522620A (en) * 1974-12-05 1978-08-23 Fillite Ltd Moulding processes and material
AT341790B (de) * 1975-09-22 1978-02-27 Ceskomoravske Eternitove Z Nar Verfahren zur herstellung von schwer entzundbaren bis feuerbestandigen schaumstoffen mit geringem raumgewicht
IT1071241B (it) * 1976-07-09 1985-04-02 Fiat Spa Dispositivo per effettuare..mediante ultrasuoni..la misura della portata d aria in massa nel condotto di aspirazione di motori ad iniezione pilotata dal dispositivo stesso
JPS5353393A (en) * 1976-10-25 1978-05-15 Matsushita Electric Ind Co Ltd Ultrasonic probe
JPS6253221B2 (de) * 1978-08-28 1987-11-09 Torobin Leonard B
CH636701A5 (de) * 1979-06-08 1983-06-15 Landis & Gyr Ag Messwertgeber zur bestimmung der durchflussmenge einer stroemenden fluessigkeit mit ultraschall.
DE2936672C2 (de) * 1979-09-11 1982-06-03 Siemens AG, 1000 Berlin und 8000 München Kontaktierung für einen Ultraschall-Wandler.
DE2951075C2 (de) * 1979-12-19 1982-04-15 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach Akustischer Wandler mit piezoelektrischem Element
JPS56124028A (en) * 1980-03-05 1981-09-29 Furuno Electric Co Ltd Ultrasonic thermometer
DE3301848C2 (de) * 1983-01-20 1984-11-08 Siemens AG, 1000 Berlin und 8000 München Ultraschallwandler
JPS59155019A (ja) * 1983-02-24 1984-09-04 Sanwa Kako Kk 架橋ポリオレフイン発泡体の成形物の製造方法
DE3478357D1 (en) * 1983-03-17 1989-06-29 Matsushita Electric Industrial Co Ltd Ultrasonic transducers having improved acoustic impedance matching layers
US4536673A (en) * 1984-01-09 1985-08-20 Siemens Aktiengesellschaft Piezoelectric ultrasonic converter with polyurethane foam damper
US4556814A (en) * 1984-02-21 1985-12-03 Ngk Spark Plug Co., Ltd. Piezoelectric ultrasonic transducer with porous plastic housing
DE3430161A1 (de) * 1984-08-16 1986-02-27 Siemens AG, 1000 Berlin und 8000 München Poroese anpassungsschicht in einem ultraschallapplikator
JPS61169100A (ja) * 1985-01-22 1986-07-30 Matsushita Electric Ind Co Ltd 超音波送受波器
JPS61139098U (de) * 1985-02-18 1986-08-28
US4683161A (en) * 1985-02-28 1987-07-28 Piezo Electric Products, Inc. Ceramic body with ordered pores
AU583623B2 (en) * 1985-05-20 1989-05-04 Gec Marconi Systems Pty Limited Acoustic decoupling medium
US4630482A (en) * 1985-06-17 1986-12-23 John Traina Method and apparatus for ultrasonic measurements of a medium
WO1987006245A1 (en) * 1986-04-10 1987-10-22 Gulf Rubber (Aust.) Pty. Limited Low density pressure resistant rubber composition
US4787252A (en) * 1987-09-30 1988-11-29 Panametrics, Inc. Differential correlation analyzer

Also Published As

Publication number Publication date
JP2559144B2 (ja) 1996-12-04
KR900005842A (ko) 1990-04-14
CA1335213C (en) 1995-04-11
DK475189A (da) 1990-03-30
GB2225426B (en) 1993-05-26
ES2068251T3 (es) 1995-04-16
DK475189D0 (da) 1989-09-27
DE68921276T2 (de) 1995-08-10
DE68921276D1 (de) 1995-03-30
AU4232989A (en) 1990-04-05
EP0361757A3 (de) 1991-09-25
JPH02177799A (ja) 1990-07-10
AU607085B2 (en) 1991-02-21
GB8822903D0 (en) 1988-11-02
US5093810A (en) 1992-03-03
EP0361757B1 (de) 1995-02-22
KR930010299B1 (ko) 1993-10-16
EP0361757A2 (de) 1990-04-04
HK1007033A1 (en) 1999-03-26
GB2225426A (en) 1990-05-30

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee