EP0678853A3 - Ultrasonic transducer with asymmetric radiation characteristic. - Google Patents

Ultrasonic transducer with asymmetric radiation characteristic. Download PDF

Info

Publication number
EP0678853A3
EP0678853A3 EP95105504A EP95105504A EP0678853A3 EP 0678853 A3 EP0678853 A3 EP 0678853A3 EP 95105504 A EP95105504 A EP 95105504A EP 95105504 A EP95105504 A EP 95105504A EP 0678853 A3 EP0678853 A3 EP 0678853A3
Authority
EP
European Patent Office
Prior art keywords
ultrasonic transducer
radiation characteristic
asymmetric radiation
asymmetric
characteristic
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
EP95105504A
Other languages
German (de)
French (fr)
Other versions
EP0678853A2 (en
EP0678853B1 (en
Inventor
Reinhard Dr Stumpe
Joachim Mathes
Helmut Doerr
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.)
Valeo Schalter und Sensoren GmbH
Original Assignee
ITT Automotive Europe GmbH
Alfred Teves GmbH
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 ITT Automotive Europe GmbH, Alfred Teves GmbH filed Critical ITT Automotive Europe GmbH
Publication of EP0678853A2 publication Critical patent/EP0678853A2/en
Publication of EP0678853A3 publication Critical patent/EP0678853A3/en
Application granted granted Critical
Publication of EP0678853B1 publication Critical patent/EP0678853B1/en
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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
EP95105504A 1994-04-21 1995-04-12 Ultrasonic transducer with asymmetric radiation characteristic Expired - Lifetime EP0678853B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4413894A DE4413894C2 (en) 1994-04-21 1994-04-21 Bending converter in pot form
DE4413894 1994-04-21

Publications (3)

Publication Number Publication Date
EP0678853A2 EP0678853A2 (en) 1995-10-25
EP0678853A3 true EP0678853A3 (en) 1997-05-21
EP0678853B1 EP0678853B1 (en) 2001-07-18

Family

ID=6516054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95105504A Expired - Lifetime EP0678853B1 (en) 1994-04-21 1995-04-12 Ultrasonic transducer with asymmetric radiation characteristic

Country Status (3)

Country Link
EP (1) EP0678853B1 (en)
DE (2) DE4413894C2 (en)
ES (1) ES2158008T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601656B4 (en) * 1996-01-18 2009-07-16 Valeo Schalter Und Sensoren Gmbh Steamed ultrasonic transducer
DE19614885C1 (en) * 1996-04-16 1997-09-04 Bosch Gmbh Robert Sensor for sending and / or receiving acoustic signals
DE19727877A1 (en) * 1997-06-30 1999-01-07 Bosch Gmbh Robert Ultrasonic transducer
US6322532B1 (en) * 1998-06-24 2001-11-27 3M Innovative Properties Company Sonophoresis method and apparatus
JP3324593B2 (en) * 1999-10-28 2002-09-17 株式会社村田製作所 Ultrasonic vibration device
DE10304001A1 (en) * 2003-02-01 2004-08-12 Valeo Schalter Und Sensoren Gmbh Pot-shaped menbrane for a sensor, in particular an ultrasonic sensor and sensor, in particular an ultrasonic sensor
EP1906383B1 (en) * 2006-09-29 2013-11-13 Tung Thih Electronic Co., Ltd. Ultrasound transducer apparatus
DE102008040905A1 (en) * 2008-07-31 2010-02-04 Robert Bosch Gmbh ultrasonic sensor
DE102014219630A1 (en) * 2014-09-26 2016-03-31 Sennheiser Electronic Gmbh & Co. Kg Electrodynamic transducer
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437032A (en) * 1981-09-23 1984-03-13 Egon Gelhard Sensor for distance measurement by ultrasound
DE3441684A1 (en) * 1984-11-15 1986-05-15 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Electro-acoustic transducer
EP0308899A2 (en) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Ultrasonic transducer with astigmatic transmission-reception characteristics
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
DE3941634A1 (en) * 1989-12-15 1991-06-20 Siemens Ag SOUND-INSULATED BRACKET OF AN ULTRASONIC TRANSDUCER

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU886325A1 (en) * 1980-01-04 1981-11-30 Научно-Исследовательский Институт Интроскопии Piezotransducer
DE3036081A1 (en) * 1980-09-25 1982-04-29 Egon Gelhard METHOD FOR DISTANCE MEASUREMENT ACCORDING TO THE ULTRASONIC ECHOPRINCIPLE AND CIRCUIT ARRANGEMENT AND DEVICES, IN PARTICULAR ON THE MOTOR VEHICLE
DE3221935A1 (en) * 1982-06-11 1984-02-16 M W Stoelzel Kg Industrievertr Electronic device for measuring the distance between motor vehicles
DE3301848C2 (en) * 1983-01-20 1984-11-08 Siemens AG, 1000 Berlin und 8000 München Ultrasonic transducer
DE8712391U1 (en) * 1987-09-12 1987-12-10 Nauroth, Heinz, Dipl.-Finanzwirt, 5300 Bonn Ultrasonic transmitting and receiving element of a distance measuring device operating according to the echo principle, in particular for reversing monitoring in motor vehicles
DE3812182C2 (en) * 1988-04-13 1997-05-15 Teves Gmbh Alfred Transducers, in particular ultrasound transducers for a distance measuring device installed in a motor vehicle
DE3826799C2 (en) * 1988-08-06 1995-08-31 Teves Gmbh Alfred Ultrasonic transducer
DE3941933C2 (en) * 1989-12-19 1997-01-30 Siemens Ag Ultrasonic transducer for air flow measurement, in particular for air volume measurement in internal combustion engines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437032A (en) * 1981-09-23 1984-03-13 Egon Gelhard Sensor for distance measurement by ultrasound
DE3441684A1 (en) * 1984-11-15 1986-05-15 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Electro-acoustic transducer
EP0308899A2 (en) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Ultrasonic transducer with astigmatic transmission-reception characteristics
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
DE3941634A1 (en) * 1989-12-15 1991-06-20 Siemens Ag SOUND-INSULATED BRACKET OF AN ULTRASONIC TRANSDUCER

Also Published As

Publication number Publication date
DE4413894A1 (en) 1995-10-26
DE4413894C2 (en) 2002-12-12
EP0678853A2 (en) 1995-10-25
ES2158008T3 (en) 2001-09-01
EP0678853B1 (en) 2001-07-18
DE59509415D1 (en) 2001-08-23

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