ES2175412T3 - Transductor electroacustico. - Google Patents

Transductor electroacustico.

Info

Publication number
ES2175412T3
ES2175412T3 ES97925087T ES97925087T ES2175412T3 ES 2175412 T3 ES2175412 T3 ES 2175412T3 ES 97925087 T ES97925087 T ES 97925087T ES 97925087 T ES97925087 T ES 97925087T ES 2175412 T3 ES2175412 T3 ES 2175412T3
Authority
ES
Spain
Prior art keywords
transducer
inductance
energy
acoustic
electroacustic
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 - Lifetime
Application number
ES97925087T
Other languages
English (en)
Inventor
Kari Kirjavainen
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.)
Panphonics Oy
Original Assignee
Panphonics Oy
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 Panphonics Oy filed Critical Panphonics Oy
Application granted granted Critical
Publication of ES2175412T3 publication Critical patent/ES2175412T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/903—Transmit-receive circuitry

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

LA INVENCION SE REFIERE A UN TRANSDUCTOR ELECTROACUSTICO EN EL QUE LA TENSION DE UN ELEMENTO ACUSTICO CAPACITIVO SE CONTROLA CARGANDO Y DESCARGANDO LA CARGA DEL ELEMENTO POR MEDIO DE UNA INDUCTANCIA (L) MEDIANTE CONMUTADORES RAPIDOS (K 1 , K 2 ). EN ESE CASO LA ENERGIA CONVERTIDA EN ENERGIA ACUSTICA DEL TRANSDUCTOR PUEDE TRANSFERIRSE A UN DISPOSITIVO DE ALMACENAMIENTO DE ENERGIA DE UN CIRCUITO ELECTRICO FORMADO POR LA INDUCTANCIA (L) Y LA CAPACITANCIA (C 1 , C 2 , C 0) DURANTE CADA SECUENCIA DE CONTROL Y DE ESTA FORMA PUEDE HACERSE QUE EL TRANSDUCTOR FUNCIONE CON UN BUEN COEFICIENTE DE EFICIENCIA.
ES97925087T 1996-06-07 1997-06-06 Transductor electroacustico. Expired - Lifetime ES2175412T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI962386A FI962386A0 (fi) 1996-06-07 1996-06-07 Elektroakustisk omvandlare

Publications (1)

Publication Number Publication Date
ES2175412T3 true ES2175412T3 (es) 2002-11-16

Family

ID=8546167

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97925087T Expired - Lifetime ES2175412T3 (es) 1996-06-07 1997-06-06 Transductor electroacustico.

Country Status (13)

Country Link
US (1) US6570818B1 (es)
EP (1) EP0903058B1 (es)
JP (1) JP3632978B2 (es)
AT (1) ATE218027T1 (es)
AU (1) AU3035097A (es)
CA (1) CA2257447A1 (es)
DE (1) DE69712755T2 (es)
DK (1) DK0903058T3 (es)
ES (1) ES2175412T3 (es)
FI (1) FI962386A0 (es)
NO (1) NO312800B1 (es)
PT (1) PT903058E (es)
WO (1) WO1997048253A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2414491A1 (en) * 2000-07-11 2002-01-17 American Technology Corporation Power amplification for parametric loudspeakers
FI118622B (fi) 2002-01-17 2008-01-15 Band Oy B Soittimen muunnin ja menetelmä sen valmistamiseksi
JP4116930B2 (ja) * 2003-06-03 2008-07-09 古野電気株式会社 超音波送信装置、超音波送受信装置、および探知装置
US9794703B2 (en) 2014-06-27 2017-10-17 Cochlear Limited Low-power active bone conduction devices
JP6528391B2 (ja) * 2014-11-25 2019-06-12 セイコーエプソン株式会社 液体吐出装置、ヘッドユニット、容量性負荷駆動用集積回路装置および容量性負荷駆動回路

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786495A (en) 1972-05-17 1974-01-15 Ncr Stored charge transducer
DE2357499C3 (de) * 1973-11-17 1979-03-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Ultraschallsender zur Fernbedienung von Rundfunk- und Fernsehempfängern
GB1499575A (en) 1974-09-11 1978-02-01 Seiko Instr & Electronics Electronic buzzers
NL7802688A (nl) 1978-03-13 1979-09-17 Philips Nv Inrichting voor het omzetten van akoestische in elektrische trillingen en omgekeerd, voor- zien van tenminste een kondensator elektreet- element aangesloten op een elektronische schakeling.
US4207442A (en) 1978-05-15 1980-06-10 Freeman Miller L Driver circuit for electrostatic transducers
DE3048632A1 (de) * 1980-12-23 1982-07-22 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer piezoelektrisches stellglied und dergleichen
US4817066A (en) * 1985-10-09 1989-03-28 Hitachi, Ltd Transmitter/receiver for ultrasonic diagnostic system
JPH083528B2 (ja) * 1986-07-15 1996-01-17 株式会社日立製作所 超音波装置
JPS62155698A (ja) 1985-12-27 1987-07-10 Nippon Atsudenki Kk 容量性拡声器の省電力駆動装置
US5161128A (en) 1990-11-30 1992-11-03 Ultrasonic Arrays, Inc. Capacitive transducer system and method
GB2296365B (en) 1993-08-16 1997-01-15 Fulleon Synchrobell Ltd Sounder

Also Published As

Publication number Publication date
AU3035097A (en) 1998-01-07
JP2000512104A (ja) 2000-09-12
NO312800B1 (no) 2002-07-01
US6570818B1 (en) 2003-05-27
DK0903058T3 (da) 2002-08-26
DE69712755D1 (de) 2002-06-27
EP0903058A1 (en) 1999-03-24
FI962386A0 (fi) 1996-06-07
EP0903058B1 (en) 2002-05-22
NO985719D0 (no) 1998-12-07
NO985719L (no) 1999-02-05
PT903058E (pt) 2002-09-30
CA2257447A1 (en) 1997-12-18
ATE218027T1 (de) 2002-06-15
JP3632978B2 (ja) 2005-03-30
WO1997048253A1 (en) 1997-12-18
DE69712755T2 (de) 2002-11-21

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