EP0308931A3 - Ultrasonic transducer with astigmatic transmission-reception characteristics - Google Patents

Ultrasonic transducer with astigmatic transmission-reception characteristics Download PDF

Info

Publication number
EP0308931A3
EP0308931A3 EP88115593A EP88115593A EP0308931A3 EP 0308931 A3 EP0308931 A3 EP 0308931A3 EP 88115593 A EP88115593 A EP 88115593A EP 88115593 A EP88115593 A EP 88115593A EP 0308931 A3 EP0308931 A3 EP 0308931A3
Authority
EP
European Patent Office
Prior art keywords
astigmatic
transmission
ultrasonic transducer
reception characteristics
reception
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.)
Granted
Application number
EP88115593A
Other languages
English (en)
Other versions
EP0308931B1 (de
EP0308931A2 (de
Inventor
Thomas Dipl.-Phys. Mockl
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0308931A2 publication Critical patent/EP0308931A2/de
Publication of EP0308931A3 publication Critical patent/EP0308931A3/de
Application granted granted Critical
Publication of EP0308931B1 publication Critical patent/EP0308931B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
    • 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
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
EP88115593A 1987-09-25 1988-09-22 Ultraschallwandler mit astigmatischer Sende-/Empfangscharakteristik Expired - Lifetime EP0308931B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873732412 DE3732412A1 (de) 1987-09-25 1987-09-25 Ultraschallwandler mit astigmatischer sende-/empfangscharakteristik
DE3732412 1987-09-25

Publications (3)

Publication Number Publication Date
EP0308931A2 EP0308931A2 (de) 1989-03-29
EP0308931A3 true EP0308931A3 (en) 1990-03-21
EP0308931B1 EP0308931B1 (de) 1993-12-08

Family

ID=6336917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88115593A Expired - Lifetime EP0308931B1 (de) 1987-09-25 1988-09-22 Ultraschallwandler mit astigmatischer Sende-/Empfangscharakteristik

Country Status (4)

Country Link
US (1) US4907207A (de)
EP (1) EP0308931B1 (de)
JP (1) JPH01119199A (de)
DE (2) DE3732412A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393225B1 (de) * 1989-04-20 1994-02-02 Siemens Aktiengesellschaft Ultraschall-Detektion mit quer zur Fahrtrichtung des Fahrzeugs gerichteter Ultraschallstrahlung
US5343443A (en) * 1990-10-15 1994-08-30 Rowe, Deines Instruments, Inc. Broadband acoustic transducer
US5268610A (en) * 1991-12-30 1993-12-07 Xerox Corporation Acoustic ink printer
US5317305A (en) * 1992-01-30 1994-05-31 Campman James P Personal alarm device with vibrating accelerometer motion detector and planar piezoelectric hi-level sound generator
US5873154A (en) * 1996-10-17 1999-02-23 Nokia Mobile Phones Limited Method for fabricating a resonator having an acoustic mirror
DE19727877A1 (de) * 1997-06-30 1999-01-07 Bosch Gmbh Robert Ultraschallwandler
US6060811A (en) * 1997-07-25 2000-05-09 The United States Of America As Represented By The United States National Aeronautics And Space Administration Advanced layered composite polylaminate electroactive actuator and sensor
DE19732513C2 (de) * 1997-07-29 2002-04-11 Eurocopter Deutschland Verfahren zur Herstellung einer Verbundstruktur
FR2787674B1 (fr) * 1998-12-21 2002-12-06 Marc Charbonneaux Membrane a relief accidente
US6453049B1 (en) * 1999-03-12 2002-09-17 Gti Audio Systems Internation Inc. Acoustic diaphragm
WO2001078450A1 (fr) * 2000-04-07 2001-10-18 Advance Technologie Audio Organisation Sa (Atao) Membrane a relief accidente
DK200101780A (da) * 2001-11-30 2002-11-27 Danfoss As Ultralydstransducer
JP4349651B2 (ja) * 2003-02-27 2009-10-21 株式会社日立メディコ 超音波探触子
JP4319644B2 (ja) * 2004-06-15 2009-08-26 株式会社東芝 音響バッキング組成物、超音波プローブ、及び超音波診断装置
JP4171038B2 (ja) * 2006-10-31 2008-10-22 株式会社東芝 超音波プローブおよび超音波診断装置
DE102012211011A1 (de) 2012-06-27 2014-01-02 Robert Bosch Gmbh Akustischer Sensor mit einer Membran aus einem Faserverbundwerkstoff
DE102013201575A1 (de) * 2013-01-31 2014-07-31 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät
US9838800B2 (en) * 2014-01-24 2017-12-05 The Johns Hopkins Univeristy PBLG based planar microphones
WO2017089609A2 (de) * 2015-11-26 2017-06-01 Elmos Semiconductor Aktiengesellschaft Schwingelement für einen ultraschall-transducer mit mehrfachresonanz
DE102017203042A1 (de) * 2017-02-24 2018-08-30 Robert Bosch Gmbh Schallwandler
DE102017205375A1 (de) * 2017-03-30 2018-10-04 Robert Bosch Gmbh Schallwandler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308094A (en) * 1977-02-02 1981-12-29 Sanyo Electric Co., Ltd. Diaphragm for speaker and method of producing same
EP0075302A1 (de) * 1981-09-23 1983-03-30 Egon Gelhard Sensor für die Durchführung einer Distanzmessung nach dem Ultraschall-Echoprinzip
US4646874A (en) * 1985-10-15 1987-03-03 Baitcher Neal L Loudspeaker diaphragm

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045695A (en) * 1974-07-15 1977-08-30 Pioneer Electronic Corporation Piezoelectric electro-acoustic transducer
FR2307276A1 (fr) * 1975-04-11 1976-11-05 France Etat Hydrophone avec reflecteur acoustique
FR2473242A1 (fr) * 1980-01-08 1981-07-10 Thomson Csf Transducteur electroacoustique a dome actif
US4460060A (en) * 1980-03-07 1984-07-17 Toray Industries, Inc. Vibratory diaphragm for loudspeaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308094A (en) * 1977-02-02 1981-12-29 Sanyo Electric Co., Ltd. Diaphragm for speaker and method of producing same
EP0075302A1 (de) * 1981-09-23 1983-03-30 Egon Gelhard Sensor für die Durchführung einer Distanzmessung nach dem Ultraschall-Echoprinzip
US4646874A (en) * 1985-10-15 1987-03-03 Baitcher Neal L Loudspeaker diaphragm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JAPANESE JOURNAL OF APPLIED PHYSICS, Band 13, Nr. 12, Dezember 1974, Seiten 2055-2056, Japanese Journal of Applied Physics Publications Office, Tokyo, JP; K. MATSUZAWA et al.: "Sheetlike materials which transmit airborne ultrasound" *

Also Published As

Publication number Publication date
EP0308931B1 (de) 1993-12-08
EP0308931A2 (de) 1989-03-29
JPH01119199A (ja) 1989-05-11
DE3886154D1 (de) 1994-01-20
DE3732412A1 (de) 1989-04-13
US4907207A (en) 1990-03-06

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