WO2001008448A3 - Piezoelektrischer akustischer alarmgeber - Google Patents

Piezoelektrischer akustischer alarmgeber Download PDF

Info

Publication number
WO2001008448A3
WO2001008448A3 PCT/DE2000/002430 DE0002430W WO0108448A3 WO 2001008448 A3 WO2001008448 A3 WO 2001008448A3 DE 0002430 W DE0002430 W DE 0002430W WO 0108448 A3 WO0108448 A3 WO 0108448A3
Authority
WO
WIPO (PCT)
Prior art keywords
piezoelectric
acoustic alarm
excited
alarm
square 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.)
Ceased
Application number
PCT/DE2000/002430
Other languages
English (en)
French (fr)
Other versions
WO2001008448A2 (de
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft 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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Priority to DE50003563T priority Critical patent/DE50003563D1/de
Priority to AU72681/00A priority patent/AU762902B2/en
Priority to EP00960322A priority patent/EP1197121B1/de
Priority to US10/031,734 priority patent/US6541894B1/en
Priority to AT00960322T priority patent/ATE249133T1/de
Priority to CA002380244A priority patent/CA2380244C/en
Publication of WO2001008448A2 publication Critical patent/WO2001008448A2/de
Publication of WO2001008448A3 publication Critical patent/WO2001008448A3/de
Anticipated expiration legal-status Critical
Ceased 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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Alarm Systems (AREA)

Abstract

Bei einem piezoelektrischen akustischen Alarmgeber sind in einem Resonanzhohlraum (1) jeweils durch eine Rechteckspannung erregte Piezoelemente (2a, 2b) einander gegenüberliegend und jeweils in entgegengesetzter Richtung schwingend angeordnet. Die beiden von einem Mikroprozessor (8) gesteuerten Rechteckspannungen (Va, Vb) sind um eine Rechteckimpulslänge phasenverschoben und positiv bzw. negativ. Ein derart ausgebildeter und erregter Piezo-Schallgeber zeichnet sich bei geringer Stromentnahme und kleiner Baugrösse durch ein hohes Schallvolumen aus.
PCT/DE2000/002430 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber Ceased WO2001008448A2 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE50003563T DE50003563D1 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber
AU72681/00A AU762902B2 (en) 1999-07-23 2000-07-18 Piezoelectric acoustic alarm
EP00960322A EP1197121B1 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber
US10/031,734 US6541894B1 (en) 1999-07-23 2000-07-18 Piezoelectric acoustic alarm
AT00960322T ATE249133T1 (de) 1999-07-23 2000-07-18 Piezoelektrischer akustischer alarmgeber
CA002380244A CA2380244C (en) 1999-07-23 2000-07-18 Piezoelectric acoustic alarm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19935768A DE19935768C2 (de) 1999-07-23 1999-07-23 Piezoelektrischer akustischer Alarmgeber
DE19935768.4 1999-07-23

Publications (2)

Publication Number Publication Date
WO2001008448A2 WO2001008448A2 (de) 2001-02-01
WO2001008448A3 true WO2001008448A3 (de) 2001-05-25

Family

ID=7916560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/002430 Ceased WO2001008448A2 (de) 1999-07-23 2000-07-18 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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875355A (en) * 1954-05-24 1959-02-24 Gulton Ind Inc Ultrasonic zone plate focusing transducer
US4129799A (en) * 1975-12-24 1978-12-12 Sri International Phase reversal ultrasonic zone plate transducer
US4237399A (en) * 1977-12-29 1980-12-02 Sony Corporation Driving circuit for piezo-electric multimorph transducer
DE3146948A1 (de) * 1981-11-26 1983-06-01 Siemens AG, 1000 Berlin und 8000 München "elektromechanischer wandler"
DE3423009A1 (de) * 1983-06-23 1986-05-22 L'Etat Français représenté par le Délégué Général pour l'Armement, Paris Verfahren und elektroakustischer wandler zum aussenden oder empfangen von schallwellen in mehreren durchlassbaendern
EP0264991A1 (de) * 1986-09-29 1988-04-27 Altometer Produktiebedrijf Ultrasonorer Durchflussmesser
US5281899A (en) * 1990-03-05 1994-01-25 Rockwell International Corporation Electrical drive for a segmented transducer

Family Cites Families (11)

* 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
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
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
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
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875355A (en) * 1954-05-24 1959-02-24 Gulton Ind Inc Ultrasonic zone plate focusing transducer
US4129799A (en) * 1975-12-24 1978-12-12 Sri International Phase reversal ultrasonic zone plate transducer
US4237399A (en) * 1977-12-29 1980-12-02 Sony Corporation Driving circuit for piezo-electric multimorph transducer
DE3146948A1 (de) * 1981-11-26 1983-06-01 Siemens AG, 1000 Berlin und 8000 München "elektromechanischer wandler"
DE3423009A1 (de) * 1983-06-23 1986-05-22 L'Etat Français représenté par le Délégué Général pour l'Armement, Paris Verfahren und elektroakustischer wandler zum aussenden oder empfangen von schallwellen in mehreren durchlassbaendern
EP0264991A1 (de) * 1986-09-29 1988-04-27 Altometer Produktiebedrijf Ultrasonorer Durchflussmesser
US5281899A (en) * 1990-03-05 1994-01-25 Rockwell International Corporation Electrical drive for a segmented transducer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"GENERATEURS SONORES A CERAMIQUES PIEZOELECTRIQUES", ELECTRONIQUE APPLICATIONS,FR,SOCIETE PARISIENNE D'EDITION. PARIS, no. 29, April 1983 (1983-04-01), pages 97, XP000795320 *

Also Published As

Publication number Publication date
CA2380244A1 (en) 2001-02-01
CA2380244C (en) 2006-02-14
AU7268100A (en) 2001-02-13
EP1197121A2 (de) 2002-04-17
AU762902B2 (en) 2003-07-10
US6541894B1 (en) 2003-04-01
DE50003563D1 (de) 2003-10-09
WO2001008448A2 (de) 2001-02-01
ZA200200491B (en) 2002-12-24
DE19935768A1 (de) 2001-02-08
ATE249133T1 (de) 2003-09-15
EP1197121B1 (de) 2003-09-03
DE19935768C2 (de) 2003-10-09

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