CA1230410A - Condenser microphone having resistance against high temperature and radioactive rays - Google Patents

Condenser microphone having resistance against high temperature and radioactive rays

Info

Publication number
CA1230410A
CA1230410A CA000488707A CA488707A CA1230410A CA 1230410 A CA1230410 A CA 1230410A CA 000488707 A CA000488707 A CA 000488707A CA 488707 A CA488707 A CA 488707A CA 1230410 A CA1230410 A CA 1230410A
Authority
CA
Canada
Prior art keywords
ring
tension
backplate
vibration membrane
microphone
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
Application number
CA000488707A
Other languages
English (en)
French (fr)
Inventor
Kenshu Watanabe
Ryohei Fujimoto
Yasuo Fujiki
Masaya Yamaguchi
Kiminori Shiba
Mikiya Arai
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.)
Japan Atomic Energy Agency
Original Assignee
Doryokuro Kakunenryo Kaihatsu Jigyodan
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 Doryokuro Kakunenryo Kaihatsu Jigyodan filed Critical Doryokuro Kakunenryo Kaihatsu Jigyodan
Application granted granted Critical
Publication of CA1230410A publication Critical patent/CA1230410A/en
Expired 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
    • 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
    • H04R19/04—Microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
CA000488707A 1984-09-10 1985-08-14 Condenser microphone having resistance against high temperature and radioactive rays Expired CA1230410A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59-188032 1984-09-10
JP59188032A JPS6166500A (ja) 1984-09-10 1984-09-10 コンデンサ型耐高温・耐放射線マイクロホン

Publications (1)

Publication Number Publication Date
CA1230410A true CA1230410A (en) 1987-12-15

Family

ID=16216468

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000488707A Expired CA1230410A (en) 1984-09-10 1985-08-14 Condenser microphone having resistance against high temperature and radioactive rays

Country Status (3)

Country Link
US (1) US4648480A (OSRAM)
JP (1) JPS6166500A (OSRAM)
CA (1) CA1230410A (OSRAM)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038459A (en) * 1987-03-04 1991-08-13 Hosiden Electronics Co., Ltd. Method of fabricating the diaphragm unit of a condenser microphone by electron beam welding
JP2514204Y2 (ja) * 1987-07-22 1996-10-16 ホシデン 株式会社 静電形マイクロホン
EP0305540B1 (en) * 1987-03-04 1994-11-23 Hosiden Corporation Diaphragm unit of a condenser microphone, a method of fabricating the same, and a condenser microphone
JPH01225283A (ja) * 1988-03-04 1989-09-08 Toshiba Corp 画像読み取り方法
AT395225B (de) * 1990-02-12 1992-10-27 Akg Akustische Kino Geraete Elektrostatischer wandler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240883A (en) * 1961-05-25 1966-03-15 Shure Bros Microphone
DE1171960B (de) * 1961-07-08 1964-06-11 Schall Technik Dr Ing Karl Sch Kondensatormikrophon mit mehreren wahlweise einstellbaren Richtcharakteristiken
JPS4925416U (OSRAM) * 1972-06-01 1974-03-04

Also Published As

Publication number Publication date
JPH0426280B2 (OSRAM) 1992-05-06
JPS6166500A (ja) 1986-04-05
US4648480A (en) 1987-03-10

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Legal Events

Date Code Title Description
MKEX Expiry