EP0308899A3 - Ultrasonic transducer with astigmatic transmission-reception characteristics - Google Patents

Ultrasonic transducer with astigmatic transmission-reception characteristics Download PDF

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Publication number
EP0308899A3
EP0308899A3 EP88115485A EP88115485A EP0308899A3 EP 0308899 A3 EP0308899 A3 EP 0308899A3 EP 88115485 A EP88115485 A EP 88115485A EP 88115485 A EP88115485 A EP 88115485A EP 0308899 A3 EP0308899 A3 EP 0308899A3
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.)
Withdrawn
Application number
EP88115485A
Other languages
German (de)
French (fr)
Other versions
EP0308899A2 (en
Inventor
Valentin Dipl.-Phys. Magori
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 EP0308899A2 publication Critical patent/EP0308899A2/en
Publication of EP0308899A3 publication Critical patent/EP0308899A3/en
Withdrawn legal-status Critical Current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
    • 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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source
    • 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

Abstract

Ultraschallwandler (1), dessen astigmatische Sende-/Empfangs­ charakteristik auf Rillen bzw. Ritzen (3, 13) beruht, die in der Membran (2) in einer Richtung (4) parallel ausgerichtet sind. Ultrasonic transducer (1), its astigmatic transmission / reception characteristic based on grooves or crevices (3, 13) in the Membrane (2) in one direction (4) are aligned parallel.

EP88115485A 1987-09-25 1988-09-21 Ultrasonic transducer with astigmatic transmission-reception characteristics Withdrawn EP0308899A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3732410 1987-09-25
DE19873732410 DE3732410A1 (en) 1987-09-25 1987-09-25 ULTRASONIC TRANSFORMER WITH ASTIGMATIC TRANSMITTER / RECEIVING CHARACTERISTICS

Publications (2)

Publication Number Publication Date
EP0308899A2 EP0308899A2 (en) 1989-03-29
EP0308899A3 true EP0308899A3 (en) 1990-03-14

Family

ID=6336916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88115485A Withdrawn EP0308899A3 (en) 1987-09-25 1988-09-21 Ultrasonic transducer with astigmatic transmission-reception characteristics

Country Status (3)

Country Link
EP (1) EP0308899A3 (en)
JP (1) JPH01119200A (en)
DE (1) DE3732410A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9003065U1 (en) * 1989-04-12 1990-10-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE58906905D1 (en) * 1989-04-20 1994-03-17 Siemens Ag Ultrasound detection with ultrasound radiation directed transversely to the direction of travel of the vehicle.
DE3939387A1 (en) * 1989-11-29 1991-06-06 Swf Auto Electric Gmbh Ultrasonic distance warning system esp. for motor vehicles - has aperture covering membrane carrying piezo-plate to eliminate group echos
DE4413894C2 (en) * 1994-04-21 2002-12-12 Teves Gmbh Alfred Bending converter in pot form
DE10009129A1 (en) * 2000-02-26 2001-08-30 Volkswagen Ag Ultrasonic sensor has pot-shaped vibration element whose floor acts as membrane with at least two disc-shaped piezoelectric transducers attached to membrane and adjacent to each other
DE10138892A1 (en) * 2001-08-08 2003-02-20 Valeo Schalter & Sensoren Gmbh ultrasound transducer
JP4724561B2 (en) * 2005-01-18 2011-07-13 株式会社川上鉄工所 Coating device
JP4618165B2 (en) * 2006-03-06 2011-01-26 株式会社デンソー Ultrasonic sensor
JP5313877B2 (en) * 2006-04-19 2013-10-09 コモンウェルス サイエンティフィック アンドインダストリアル リサーチ オーガナイゼーション Ultrasonic transducer system
EP1906383B1 (en) * 2006-09-29 2013-11-13 Tung Thih Electronic Co., Ltd. Ultrasound transducer apparatus
DE102010002282A1 (en) 2010-02-24 2011-08-25 Lisa Dräxlmaier GmbH, 84137 Interior trim part and outer trim part of a vehicle with an ultrasonic sensor
EP2661099B1 (en) 2010-12-28 2018-10-17 NEC Corporation Electroacoustic transducer
JP5023244B1 (en) * 2012-01-13 2012-09-12 浩平 速水 Vibration power generator
JP5458421B2 (en) * 2012-05-07 2014-04-02 浩平 速水 Vibration power generator
JP5228136B1 (en) * 2012-11-21 2013-07-03 浩平 速水 Vibration power generator
DE102015205950B4 (en) * 2015-04-01 2017-02-02 Volkswagen Aktiengesellschaft Apparatus, method and computer program for detecting acoustic control instructions
DE102015106240A1 (en) 2015-04-23 2016-10-27 Valeo Schalter Und Sensoren Gmbh Ultrasonic sensor for a motor vehicle with a through-passage membrane, trim arrangement and motor vehicle
DE102015107899A1 (en) * 2015-05-20 2016-11-24 Valeo Schalter Und Sensoren Gmbh Ultrasonic sensor for a motor vehicle, motor vehicle and method for producing an ultrasonic sensor
WO2017089609A2 (en) * 2015-11-26 2017-06-01 Elmos Semiconductor Aktiengesellschaft Oscillating element for a multiple resonant frequency ultrasonic transducer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716708A (en) * 1950-11-17 1955-08-30 Nat Res Dev Apparatus for launching ultrasonic waves
FR2293844A1 (en) * 1974-12-02 1976-07-02 Barcus Lester ACOUSTIC TRANSDUCER
EP0037620A1 (en) * 1980-04-07 1981-10-14 North American Philips Corporation Acoustic impedance matching device
EP0075302A1 (en) * 1981-09-23 1983-03-30 Egon Gelhard Sensor for measuring distances using ultrasonic echos

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855143C2 (en) * 1978-12-20 1980-11-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Process for the manufacture of an ultrasonic transducer and transducers manufactured accordingly
JPS5642493A (en) * 1979-09-13 1981-04-20 Toray Ind Inc Acoustic-wave converging type transducer using high-molecular piezoelectric body
DE3407980A1 (en) * 1983-04-20 1984-10-25 Tadashi Tokio/Tokyo Sawafuji CRYSTAL SOUND GENERATOR
JPS59230224A (en) * 1983-06-13 1984-12-24 三菱電機株式会社 Gas insulated switching device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716708A (en) * 1950-11-17 1955-08-30 Nat Res Dev Apparatus for launching ultrasonic waves
FR2293844A1 (en) * 1974-12-02 1976-07-02 Barcus Lester ACOUSTIC TRANSDUCER
EP0037620A1 (en) * 1980-04-07 1981-10-14 North American Philips Corporation Acoustic impedance matching device
EP0075302A1 (en) * 1981-09-23 1983-03-30 Egon Gelhard Sensor for measuring distances using ultrasonic echos

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 102, Nr. 90 (P-503), 2. Oktober 1982; & JP-A-59 230 224 (HITACHI LTD) 28-05-1986 *

Also Published As

Publication number Publication date
EP0308899A2 (en) 1989-03-29
DE3732410A1 (en) 1989-04-13
JPH01119200A (en) 1989-05-11

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