NO891503D0 - Elektroakustisk omvandler uten retningskarakteristikk. - Google Patents

Elektroakustisk omvandler uten retningskarakteristikk.

Info

Publication number
NO891503D0
NO891503D0 NO891503A NO891503A NO891503D0 NO 891503 D0 NO891503 D0 NO 891503D0 NO 891503 A NO891503 A NO 891503A NO 891503 A NO891503 A NO 891503A NO 891503 D0 NO891503 D0 NO 891503D0
Authority
NO
Norway
Prior art keywords
electroacustic
change
directional characteristics
directional
electroacustic change
Prior art date
Application number
NO891503A
Other languages
English (en)
Other versions
NO171700C (no
NO891503L (no
NO171700B (no
Inventor
Erkannt Nicht
Original Assignee
Honeywell Elac Nautik 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 Honeywell Elac Nautik Gmbh filed Critical Honeywell Elac Nautik Gmbh
Publication of NO891503D0 publication Critical patent/NO891503D0/no
Publication of NO891503L publication Critical patent/NO891503L/no
Publication of NO171700B publication Critical patent/NO171700B/no
Publication of NO171700C publication Critical patent/NO171700C/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
    • B06B1/0618—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Thermistors And Varistors (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
NO891503A 1988-04-13 1989-04-12 Elektroakustisk omvandler uten retningskarakteristikk NO171700C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3812244A DE3812244C1 (no) 1988-04-13 1988-04-13

Publications (4)

Publication Number Publication Date
NO891503D0 true NO891503D0 (no) 1989-04-12
NO891503L NO891503L (no) 1989-10-16
NO171700B NO171700B (no) 1993-01-11
NO171700C NO171700C (no) 1993-04-21

Family

ID=6351877

Family Applications (1)

Application Number Title Priority Date Filing Date
NO891503A NO171700C (no) 1988-04-13 1989-04-12 Elektroakustisk omvandler uten retningskarakteristikk

Country Status (4)

Country Link
US (1) US4916675A (no)
DE (1) DE3812244C1 (no)
IT (1) IT1231754B (no)
NO (1) NO171700C (no)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231252A (en) * 1992-06-19 1993-07-27 Sansone Stanley A Sensor platform for use in seismic reflection surveys
US5321332A (en) * 1992-11-12 1994-06-14 The Whitaker Corporation Wideband ultrasonic transducer
US5619476A (en) * 1994-10-21 1997-04-08 The Board Of Trustees Of The Leland Stanford Jr. Univ. Electrostatic ultrasonic transducer
US5508976A (en) * 1994-12-02 1996-04-16 Loral Defense Systems Low frequency underwater acoustic transducer
DE19909485C1 (de) * 1999-03-04 2000-11-30 Stn Atlas Elektronik Gmbh Elektroakustische Wandleranordnung
EP1245133A4 (en) 2000-01-06 2006-05-03 Lockheed Corp BROADBAND SOUNDPIECE TRANSMITTER WITH ACTIVE CLOSING
US6678209B1 (en) 2001-11-21 2004-01-13 Luc Peng Apparatus and method for detecting sonar signals in a noisy environment
DE102004038034A1 (de) * 2004-08-05 2006-02-23 Atlas Elektronik Gmbh Elektroakustische Sendeantenne
US8311261B2 (en) * 2009-08-14 2012-11-13 Graber Curtis E Acoustic transducer array
US8027224B2 (en) * 2009-11-11 2011-09-27 Brown David A Broadband underwater acoustic transducer
CN103650352B (zh) 2010-11-01 2020-03-06 罗韦技术有限公司 多频二维相控阵列换能器
CA2824955C (en) 2011-01-31 2020-09-01 Sunnybrook Health Sciences Centre Ultrasonic probe with ultrasonic transducers addressable on common electrical channel
WO2014144199A2 (en) 2013-03-15 2014-09-18 Weber Ronald Gene Cost effective broadband transducer assembly and method of use
USRE49437E1 (en) 2014-09-30 2023-02-28 Apple Inc. Audio driver and power supply unit architecture
KR102049052B1 (ko) * 2014-09-30 2019-11-27 애플 인크. 라우드스피커
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
US10834497B2 (en) 2016-09-23 2020-11-10 Apple Inc. User interface cooling using audio component
DE102022205472A1 (de) 2022-05-31 2023-11-30 Atlas Elektronik Gmbh Hydroakustisches Schallsenderarray

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484626A (en) * 1946-07-26 1949-10-11 Bell Telephone Labor Inc Electromechanical transducer
US3457543A (en) * 1968-02-26 1969-07-22 Honeywell Inc Transducer for producing two coaxial beam patterns of different frequencies
FR2302655A1 (fr) * 1975-02-27 1976-09-24 France Etat Transducteur piezoelectrique multimoteurs a contremasse unique
US3952216A (en) * 1975-04-04 1976-04-20 The United States Of America As Represented By The Secretary Of The Navy Multiple-frequency transducer
FR2361033A1 (fr) * 1976-08-03 1978-03-03 France Etat Transducteurs piezoelectriques et antennes acoustiques immergeables a grande profondeur
US4380808A (en) * 1981-02-06 1983-04-19 Canadian Patents & Development Limited Thinned array transducer for sonar
US4439847A (en) * 1981-12-21 1984-03-27 The Stoneleigh Trust High efficiency broadband directional sonar transducer
US4604542A (en) * 1984-07-25 1986-08-05 Gould Inc. Broadband radial vibrator transducer with multiple resonant frequencies
DE3620085C2 (de) * 1986-06-14 1994-03-10 Honeywell Elac Nautik Gmbh Rohrförmiger elektroakustischer Wandler

Also Published As

Publication number Publication date
IT8947850A0 (it) 1989-04-13
DE3812244C1 (no) 1989-11-09
NO171700C (no) 1993-04-21
NO891503L (no) 1989-10-16
IT1231754B (it) 1991-12-21
US4916675A (en) 1990-04-10
NO171700B (no) 1993-01-11

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Legal Events

Date Code Title Description
MK1K Patent expired