KR900006323B1 - 압전세라믹 음향변환기 - Google Patents

압전세라믹 음향변환기 Download PDF

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Publication number
KR900006323B1
KR900006323B1 KR1019870009213A KR870009213A KR900006323B1 KR 900006323 B1 KR900006323 B1 KR 900006323B1 KR 1019870009213 A KR1019870009213 A KR 1019870009213A KR 870009213 A KR870009213 A KR 870009213A KR 900006323 B1 KR900006323 B1 KR 900006323B1
Authority
KR
South Korea
Prior art keywords
acoustic transducer
metal diaphragm
support ring
annular groove
ceramic
Prior art date
Application number
KR1019870009213A
Other languages
English (en)
Korean (ko)
Other versions
KR880003535A (ko
Inventor
베트틀 게르트
Original Assignee
스테르터 운트 캄파니
엥그베르그 브렘스탈러
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 스테르터 운트 캄파니, 엥그베르그 브렘스탈러 filed Critical 스테르터 운트 캄파니
Publication of KR880003535A publication Critical patent/KR880003535A/ko
Application granted granted Critical
Publication of KR900006323B1 publication Critical patent/KR900006323B1/ko

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Classifications

    • 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
    • H04R17/02—Microphones
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
KR1019870009213A 1986-08-27 1987-08-24 압전세라믹 음향변환기 KR900006323B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3629093.9 1986-08-27
DE19863629093 DE3629093A1 (de) 1986-08-27 1986-08-27 Piezokeramischer schallwandler
DEP3629093.9 1986-08-27

Publications (2)

Publication Number Publication Date
KR880003535A KR880003535A (ko) 1988-05-17
KR900006323B1 true KR900006323B1 (ko) 1990-08-28

Family

ID=6308271

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870009213A KR900006323B1 (ko) 1986-08-27 1987-08-24 압전세라믹 음향변환기

Country Status (5)

Country Link
EP (1) EP0264557A3 (fr)
JP (1) JPS6367900A (fr)
KR (1) KR900006323B1 (fr)
DE (1) DE3629093A1 (fr)
IL (1) IL83648A0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02234600A (ja) * 1989-03-07 1990-09-17 Mitsubishi Mining & Cement Co Ltd 圧電変換素子
JP3360558B2 (ja) * 1997-01-06 2002-12-24 株式会社村田製作所 圧電型電気音響変換器
GB2348564B (en) 1999-04-01 2003-06-18 Thomson Marconi Sonar Ltd Transducers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR854121A (fr) * 1938-12-14 1940-04-05 Csf Perfectionnements aux appareils électromécaniques vibrants
DE1112548B (de) * 1960-02-01 1961-08-10 Krone Kg Sprechkapsel fuer fernmeldetechnische Zwecke
US4056742A (en) * 1976-04-30 1977-11-01 Tibbetts Industries, Inc. Transducer having piezoelectric film arranged with alternating curvatures
FR2394512A1 (fr) * 1977-06-14 1979-01-12 Rhone Poulenc Ind Procede de separation d'acide acrylique a partir de ses solutions dans le phosphate de tri-n-butyle
DE3041742C2 (de) * 1980-11-05 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Luftschallgeber
JPS5781799A (en) * 1980-11-10 1982-05-21 Murata Mfg Co Ltd Piezo-electric speaker

Also Published As

Publication number Publication date
JPS6367900A (ja) 1988-03-26
DE3629093A1 (de) 1988-03-10
KR880003535A (ko) 1988-05-17
IL83648A0 (en) 1988-01-31
EP0264557A3 (fr) 1989-12-06
EP0264557A2 (fr) 1988-04-27

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Legal Events

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A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee