ZA935767B - Acoustic transducer. - Google Patents

Acoustic transducer.

Info

Publication number
ZA935767B
ZA935767B ZA935767A ZA935767A ZA935767B ZA 935767 B ZA935767 B ZA 935767B ZA 935767 A ZA935767 A ZA 935767A ZA 935767 A ZA935767 A ZA 935767A ZA 935767 B ZA935767 B ZA 935767B
Authority
ZA
South Africa
Prior art keywords
plate
radiating
acoustic transducer
zones
adherent
Prior art date
Application number
ZA935767A
Other languages
English (en)
Inventor
Bogdan Cherek
Original Assignee
Federal Ind Ind Group Inc
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 Federal Ind Ind Group Inc filed Critical Federal Ind Ind Group Inc
Publication of ZA935767B publication Critical patent/ZA935767B/xx

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)
  • Electrophonic Musical Instruments (AREA)
  • Surgical Instruments (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
ZA935767A 1992-09-04 1993-08-09 Acoustic transducer. ZA935767B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/941,201 US5218575A (en) 1992-09-04 1992-09-04 Acoustic transducer

Publications (1)

Publication Number Publication Date
ZA935767B true ZA935767B (en) 1994-03-08

Family

ID=25476089

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA935767A ZA935767B (en) 1992-09-04 1993-08-09 Acoustic transducer.

Country Status (10)

Country Link
US (1) US5218575A (de)
EP (1) EP0590799B1 (de)
JP (1) JPH077796A (de)
AT (1) ATE164468T1 (de)
AU (1) AU646625B1 (de)
CA (1) CA2105491C (de)
DE (1) DE69317616T2 (de)
DK (1) DK0590799T3 (de)
ES (1) ES2115728T3 (de)
ZA (1) ZA935767B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452267A (en) * 1994-01-27 1995-09-19 Magnetrol International, Inc. Midrange ultrasonic transducer
DE19620133C2 (de) * 1996-05-18 2001-09-13 Endress Hauser Gmbh Co Schall- oder Ultraschallsensor
DE19758243A1 (de) * 1997-12-30 1999-07-15 Endress Hauser Gmbh Co Schallwandlersystem
AU7388200A (en) * 1999-07-23 2001-02-13 Digital Sonics, Llc Flat panel speaker
US6460412B1 (en) 2000-10-27 2002-10-08 Union Carbide Chemicals & Plastics Technology Corporation Detection of dynamic fluidized bed level in a fluidized bed polymerization reactor using ultrasonic waves or microwaves
AU2002243224A1 (en) * 2000-11-16 2002-06-24 The Trustees Of The Stevens Institute Of Technology Large aperture vibration and acoustic sensor
DE102008047796A1 (de) 2008-09-17 2010-04-15 Siemens Aktiengesellschaft Vorrichtung zur Erzeugung von breitbandigem Schall im Hörbereich des Menschen
US9179219B2 (en) 2011-11-09 2015-11-03 Airmar Technology Corporation Widebeam acoustic transducer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE413441C (de) * 1921-04-19 1925-05-12 Robert Bosch Akt Ges Elektromagnetische Hupe
FR1427604A (fr) * 1960-07-04 1966-02-11 Csf Nouveau projecteur d'ondes acoustiques à lame vibrante
DE1904417A1 (de) * 1968-02-27 1969-09-11 Compteurs Comp D Vorrichtung zur Vergroesserung der in ein Gas abgestrahlten akustischen Leistung und Verfahren zur Herstellung dieser Vorrichtung
US3849679A (en) * 1970-02-12 1974-11-19 Dynamics Corp Massa Div Electroacoustic transducer with controlled beam pattern
FR2201604B1 (de) * 1972-09-22 1979-02-09 Thomson Csf
US4056742A (en) * 1976-04-30 1977-11-01 Tibbetts Industries, Inc. Transducer having piezoelectric film arranged with alternating curvatures
US4395652A (en) * 1979-09-13 1983-07-26 Toray Industries, Inc. Ultrasonic transducer element
US4333028A (en) * 1980-04-21 1982-06-01 Milltronics Ltd. Damped acoustic transducers with piezoelectric drivers
DE3602351C1 (de) * 1986-01-27 1986-12-11 Endress + Hauser GmbH + Co., 79689 Maulburg Schallwandlersystem
FR2620294B1 (fr) * 1987-09-07 1990-01-19 Technomed Int Sa Dispositif piezoelectrique a ondes negatives reduites, et utilisation de ce dispositif pour la lithotritie extra-corporelle ou pour la destruction de tissus particuliers

Also Published As

Publication number Publication date
US5218575A (en) 1993-06-08
ATE164468T1 (de) 1998-04-15
EP0590799A3 (de) 1995-03-15
EP0590799A2 (de) 1994-04-06
DE69317616T2 (de) 1998-09-24
DE69317616D1 (de) 1998-04-30
ES2115728T3 (es) 1998-07-01
DK0590799T3 (da) 1999-01-25
EP0590799B1 (de) 1998-03-25
CA2105491A1 (en) 1994-03-05
AU646625B1 (en) 1994-02-24
CA2105491C (en) 1997-06-17
JPH077796A (ja) 1995-01-10

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