DE1639444B2 - Elektroakustischer wandler - Google Patents

Elektroakustischer wandler

Info

Publication number
DE1639444B2
DE1639444B2 DE19681639444 DE1639444A DE1639444B2 DE 1639444 B2 DE1639444 B2 DE 1639444B2 DE 19681639444 DE19681639444 DE 19681639444 DE 1639444 A DE1639444 A DE 1639444A DE 1639444 B2 DE1639444 B2 DE 1639444B2
Authority
DE
Germany
Prior art keywords
membrane
electret
electrode
grid
converter according
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.)
Pending
Application number
DE19681639444
Other languages
German (de)
English (en)
Other versions
DE1639444A1 (de
Inventor
Preston V. Weston Mass. Murphy (V.StA.)
Original Assignee
Thermo Electron Engineering Corp., Waltham, Mass. (V.StA.)
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 Thermo Electron Engineering Corp., Waltham, Mass. (V.StA.) filed Critical Thermo Electron Engineering Corp., Waltham, Mass. (V.StA.)
Publication of DE1639444A1 publication Critical patent/DE1639444A1/de
Publication of DE1639444B2 publication Critical patent/DE1639444B2/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
DE19681639444 1967-05-15 1968-01-16 Elektroakustischer wandler Pending DE1639444B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63846367A 1967-05-15 1967-05-15

Publications (2)

Publication Number Publication Date
DE1639444A1 DE1639444A1 (de) 1971-04-22
DE1639444B2 true DE1639444B2 (de) 1972-08-03

Family

ID=24560137

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681639444 Pending DE1639444B2 (de) 1967-05-15 1968-01-16 Elektroakustischer wandler

Country Status (4)

Country Link
JP (1) JPS5025160B1 (https=)
DE (1) DE1639444B2 (https=)
GB (3) GB1230403A (https=)
NL (1) NL167542C (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430068A1 (de) * 1973-06-26 1975-01-16 Akg Akustische Kino Geraete Kondensatormikrophon

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815868B1 (https=) * 1969-08-28 1973-05-17
JPS5121334B2 (https=) * 1971-08-27 1976-07-01
CA989514A (en) * 1972-09-08 1976-05-18 Uniroyal Ltd. Electromechanical transducer and method of making same
JPS5130997A (en) * 1974-09-11 1976-03-16 Kureha Chemical Ind Co Ltd Kobunshifuirumu no renzokuseikyokuhoho
US4085297A (en) * 1977-06-13 1978-04-18 Polaroid Corporation Spring force biasing means for electroacoustical transducer components
JPS57188105A (en) * 1981-05-14 1982-11-19 Toshiba Corp Electret constituent
WO2014017204A1 (ja) * 2012-07-25 2014-01-30 株式会社ビスキャス 振動発電体
RU181900U1 (ru) * 2018-04-16 2018-07-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Устройство для изготовления электретов
KR102337495B1 (ko) 2019-12-20 2021-12-09 삼성에스디아이 주식회사 부하 제어회로 감지시스템

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430068A1 (de) * 1973-06-26 1975-01-16 Akg Akustische Kino Geraete Kondensatormikrophon

Also Published As

Publication number Publication date
DE1639444A1 (de) 1971-04-22
GB1230404A (https=) 1971-05-05
GB1230402A (https=) 1971-05-05
NL6805919A (https=) 1968-11-18
NL167542C (nl) 1981-12-16
GB1230403A (https=) 1971-05-05
NL167542B (nl) 1981-07-16
JPS5025160B1 (https=) 1975-08-21

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