DE4140040A1 - Ultraschall-daempfungsmaterial - Google Patents

Ultraschall-daempfungsmaterial

Info

Publication number
DE4140040A1
DE4140040A1 DE19914140040 DE4140040A DE4140040A1 DE 4140040 A1 DE4140040 A1 DE 4140040A1 DE 19914140040 DE19914140040 DE 19914140040 DE 4140040 A DE4140040 A DE 4140040A DE 4140040 A1 DE4140040 A1 DE 4140040A1
Authority
DE
Germany
Prior art keywords
damping material
damping
material according
cavities
bubbles
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Withdrawn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
DE19914140040
Other languages
German (de)
English (en)
Inventor
Werner Dipl.-Ing. 7012 Fellbach De Pfander
Irene 7057 Winnenden De Jennrich
Peter 7500 Karlsruhe De Rapps
Reinhold 7601 Durbach De Fiess
Uwe Dipl.-Ing. Koehler (Fh), 7148 Remseck, De
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19914140040 priority Critical patent/DE4140040A1/de
Priority to PCT/DE1992/000961 priority patent/WO1993011527A1/de
Priority to TW82101159A priority patent/TW207003B/zh
Publication of DE4140040A1 publication Critical patent/DE4140040A1/de
Withdrawn legal-status Critical Current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
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
DE19914140040 1991-12-05 1991-12-05 Ultraschall-daempfungsmaterial Withdrawn DE4140040A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19914140040 DE4140040A1 (de) 1991-12-05 1991-12-05 Ultraschall-daempfungsmaterial
PCT/DE1992/000961 WO1993011527A1 (de) 1991-12-05 1992-11-19 Ultraschall-dämpfungsmaterial
TW82101159A TW207003B (enrdf_load_stackoverflow) 1991-12-05 1993-02-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914140040 DE4140040A1 (de) 1991-12-05 1991-12-05 Ultraschall-daempfungsmaterial

Publications (1)

Publication Number Publication Date
DE4140040A1 true DE4140040A1 (de) 1993-06-09

Family

ID=6446288

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914140040 Withdrawn DE4140040A1 (de) 1991-12-05 1991-12-05 Ultraschall-daempfungsmaterial

Country Status (3)

Country Link
DE (1) DE4140040A1 (enrdf_load_stackoverflow)
TW (1) TW207003B (enrdf_load_stackoverflow)
WO (1) WO1993011527A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079119A3 (en) * 1999-08-26 2003-09-10 Kabushiki Kaisha Toyota Jidoshokki Position detecting device for hydraulic cylinder, and industrial vehicle equipped with the position detecting device
DE10357837A1 (de) * 2003-12-09 2005-07-07 Sennheiser Electronic Gmbh & Co. Kg Verfahren zur Oberflächenmontage von akustischen Wandlern
DE19601656B4 (de) * 1996-01-18 2009-07-16 Valeo Schalter Und Sensoren Gmbh Bedämpfter Ultraschallwandler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5627799B2 (ja) * 2012-08-10 2014-11-19 京セラ株式会社 音響発生器、音響発生装置及び電子機器
CN109266005A (zh) * 2018-08-31 2019-01-25 歌尔股份有限公司 一种振膜的制备方法和发声装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707755A (en) * 1950-07-20 1955-05-03 Sperry Prod Inc High absorption backings for ultrasonic crystals
DE3137745A1 (de) * 1981-09-23 1983-04-07 Egon 5000 Köln Gelhard Sensor fuer die durchfuehrung der distanzmessung nach dem ultraschalll-echoprinzip
DE3301848C2 (de) * 1983-01-20 1984-11-08 Siemens AG, 1000 Berlin und 8000 München Ultraschallwandler
JPS59158699A (ja) * 1983-02-28 1984-09-08 Shimadzu Corp 超音波探触子
DE3739185A1 (de) * 1987-11-19 1989-06-01 Krupp Atlas Elektronik Gmbh Wandlerelement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601656B4 (de) * 1996-01-18 2009-07-16 Valeo Schalter Und Sensoren Gmbh Bedämpfter Ultraschallwandler
EP1079119A3 (en) * 1999-08-26 2003-09-10 Kabushiki Kaisha Toyota Jidoshokki Position detecting device for hydraulic cylinder, and industrial vehicle equipped with the position detecting device
DE10357837A1 (de) * 2003-12-09 2005-07-07 Sennheiser Electronic Gmbh & Co. Kg Verfahren zur Oberflächenmontage von akustischen Wandlern
DE10357837B4 (de) * 2003-12-09 2013-08-08 Sennheiser Electronic Gmbh & Co. Kg Verfahren zur Oberflächenmontage von akustischen Wandlern

Also Published As

Publication number Publication date
WO1993011527A1 (de) 1993-06-10
TW207003B (enrdf_load_stackoverflow) 1993-06-01

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination