DE50003563D1 - Piezoelektrischer akustischer alarmgeber - Google Patents

Piezoelektrischer akustischer alarmgeber

Info

Publication number
DE50003563D1
DE50003563D1 DE50003563T DE50003563T DE50003563D1 DE 50003563 D1 DE50003563 D1 DE 50003563D1 DE 50003563 T DE50003563 T DE 50003563T DE 50003563 T DE50003563 T DE 50003563T DE 50003563 D1 DE50003563 D1 DE 50003563D1
Authority
DE
Germany
Prior art keywords
square
acoustic alarm
piezoelectric acoustic
excited
wave
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.)
Expired - Fee Related
Application number
DE50003563T
Other languages
English (en)
Inventor
Thomas Haenisch
Peter Frank
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.)
MSA Auer GmbH
Original Assignee
MSA Auer 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 MSA Auer GmbH filed Critical MSA Auer GmbH
Priority to DE50003563T priority Critical patent/DE50003563D1/de
Application granted granted Critical
Publication of DE50003563D1 publication Critical patent/DE50003563D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Burglar Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Electromechanical Clocks (AREA)
  • Alarm Systems (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
DE50003563T 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber Expired - Fee Related DE50003563D1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50003563T DE50003563D1 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19935768A DE19935768C2 (de) 1999-07-23 1999-07-23 Piezoelektrischer akustischer Alarmgeber
DE50003563T DE50003563D1 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber
PCT/DE2000/002430 WO2001008448A2 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber

Publications (1)

Publication Number Publication Date
DE50003563D1 true DE50003563D1 (de) 2003-10-09

Family

ID=7916560

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19935768A Expired - Fee Related DE19935768C2 (de) 1999-07-23 1999-07-23 Piezoelektrischer akustischer Alarmgeber
DE50003563T Expired - Fee Related DE50003563D1 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19935768A Expired - Fee Related DE19935768C2 (de) 1999-07-23 1999-07-23 Piezoelektrischer akustischer Alarmgeber

Country Status (8)

Country Link
US (1) US6541894B1 (de)
EP (1) EP1197121B1 (de)
AT (1) ATE249133T1 (de)
AU (1) AU762902B2 (de)
CA (1) CA2380244C (de)
DE (2) DE19935768C2 (de)
WO (1) WO2001008448A2 (de)
ZA (1) ZA200200491B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114471B4 (de) * 2011-09-28 2013-05-08 Eads Deutschland Gmbh Membrananordnung zur Schallerzeugung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126436A (en) * 1935-01-07 1938-08-09 Brush Deveiepment Company Acoustical apparatus
US2875355A (en) * 1954-05-24 1959-02-24 Gulton Ind Inc Ultrasonic zone plate focusing transducer
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
US4129799A (en) 1975-12-24 1978-12-12 Sri International Phase reversal ultrasonic zone plate transducer
JPS5492307A (en) 1977-12-29 1979-07-21 Sony Corp Driving circuit of electrostrictive converter
DE3146948A1 (de) 1981-11-26 1983-06-01 Siemens AG, 1000 Berlin und 8000 München "elektromechanischer wandler"
FR2570916B1 (fr) 1983-06-23 1988-04-15 France Etat Armement Procede et transducteur electro-acoustique pour emettre ou recevoir des ondes acoustiques dans plusieurs bandes passantes
JPS60134700A (ja) * 1983-12-23 1985-07-17 Nippon Denso Co Ltd 発音装置
US4700100A (en) * 1986-09-02 1987-10-13 Magnavox Government And Industrial Electronics Company Flexural disk resonant cavity transducer
NL8602458A (nl) 1986-09-29 1988-04-18 Rheometron Ag Ultrasone stromingsmeter.
JPH01115427A (ja) * 1987-10-29 1989-05-08 Nkk Corp 湿式集塵装置のダストおよび洗滌水排出方法
CA2020185A1 (en) 1990-03-05 1991-09-06 Gordon Walter Culp Electrical drive for a segmented transducer
JPH0479779A (ja) * 1990-07-18 1992-03-13 Asmo Co Ltd 超音波モータの駆動回路
JP2737420B2 (ja) * 1991-03-04 1998-04-08 日本電気株式会社 超音波モータの駆動方式
US5258743A (en) * 1991-07-29 1993-11-02 Uniplex Corporation Piezoelectric motion sensor
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
US5842288A (en) * 1996-12-10 1998-12-01 U.S. Controls Corporation Clothes dryer with chiming alarm
JP2002112564A (ja) * 2000-09-29 2002-04-12 Minolta Co Ltd アクチュエータの駆動装置

Also Published As

Publication number Publication date
EP1197121B1 (de) 2003-09-03
US6541894B1 (en) 2003-04-01
EP1197121A2 (de) 2002-04-17
CA2380244A1 (en) 2001-02-01
CA2380244C (en) 2006-02-14
ATE249133T1 (de) 2003-09-15
DE19935768A1 (de) 2001-02-08
DE19935768C2 (de) 2003-10-09
ZA200200491B (en) 2002-12-24
AU762902B2 (en) 2003-07-10
WO2001008448A3 (de) 2001-05-25
WO2001008448A2 (de) 2001-02-01
AU7268100A (en) 2001-02-13

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee