DE1190040B - Elektrostatischer Wandler - Google Patents

Elektrostatischer Wandler

Info

Publication number
DE1190040B
DE1190040B DEW32709A DEW0032709A DE1190040B DE 1190040 B DE1190040 B DE 1190040B DE W32709 A DEW32709 A DE W32709A DE W0032709 A DEW0032709 A DE W0032709A DE 1190040 B DE1190040 B DE 1190040B
Authority
DE
Germany
Prior art keywords
membrane
back plate
foils
layer
air gap
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
DEW32709A
Other languages
German (de)
English (en)
Inventor
Gerhard Martin Sessler
James Edward West
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of DE1190040B publication Critical patent/DE1190040B/de
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DEW32709A 1961-08-07 1962-07-31 Elektrostatischer Wandler Pending DE1190040B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US129629A US3118979A (en) 1961-08-07 1961-08-07 Electrostatic transducer

Publications (1)

Publication Number Publication Date
DE1190040B true DE1190040B (de) 1965-04-01

Family

ID=22440870

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW32709A Pending DE1190040B (de) 1961-08-07 1962-07-31 Elektrostatischer Wandler

Country Status (4)

Country Link
US (1) US3118979A (en:Method)
DE (1) DE1190040B (en:Method)
GB (1) GB1014781A (en:Method)
NL (1) NL281794A (en:Method)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300585A (en) * 1963-09-04 1967-01-24 Northern Electric Co Self-polarized electrostatic microphone-semiconductor amplifier combination
DE1437420C3 (de) * 1964-07-21 1978-06-22 Elly 1000 Berlin Neumann Geb. Kosak Kondensator-Richtmikrophonkapsel
US3736436A (en) * 1971-11-04 1973-05-29 Mc Donnell Douglas Corp Electret pressure transducer
US3868624A (en) * 1972-12-29 1975-02-25 Us Navy Apparatus for mapping acoustic fields
US3980838A (en) * 1974-02-20 1976-09-14 Tokyo Shibaura Electric Co., Ltd. Plural electret electroacoustic transducer
US4081626A (en) * 1976-11-12 1978-03-28 Polaroid Corporation Electrostatic transducer having narrowed directional characteristic
US4204244A (en) * 1978-01-23 1980-05-20 Motorola, Inc. Electromechanical pressure transducer
US4178621A (en) * 1978-01-23 1979-12-11 Motorola, Inc. Electromechanical pressure transducer
US4160882A (en) * 1978-03-13 1979-07-10 Driver Michael L Double diaphragm electrostatic transducer each diaphragm comprising two plastic sheets having different charge carrying characteristics
US4598590A (en) * 1984-09-14 1986-07-08 At&T Bell Laboratories Electret transducer for blood pressure measurement
CA1277415C (en) * 1986-04-11 1990-12-04 Lorne A. Whitehead Elastomer membrane enhanced electrostatic transducer
US5450498A (en) * 1993-07-14 1995-09-12 The University Of British Columbia High pressure low impedance electrostatic transducer
US5395592A (en) * 1993-10-04 1995-03-07 Bolleman; Brent Acoustic liquid processing device
EP3200479A3 (en) 2016-01-28 2017-08-30 Sonion Nederland B.V. An assembly comprising an electrostatic sound generator and a transformer
CN109819379A (zh) * 2018-12-29 2019-05-28 瑞声科技（南京）有限公司 振膜及发声器件
CN212344045U (zh) * 2020-06-30 2021-01-12 歌尔股份有限公司 振膜和应用该振膜的发声装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE350499C (de) * 1922-03-21 Joseph Engl Dr Elektrostatisches Telephon
DE892773C (de) * 1941-04-17 1953-10-12 Siemens Ag Kondensator-Mikrofon

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777170A (en) * 1928-03-12 1930-09-30 United Reproducers Patents Cor Acoustic device
US1767657A (en) * 1929-08-09 1930-06-24 Ephraim Banning Capacity reproducer
US1826952A (en) * 1929-10-21 1931-10-13 Ephraim Banning Acoustic condenser diaphragm
US1975801A (en) * 1930-12-15 1934-10-09 Sound Lab Corp Ltd Microphone
US2009520A (en) * 1933-06-29 1935-07-30 Reisz Eugen Electroacoustic device
DE884516C (de) * 1940-12-09 1953-07-27 Siemens Ag Elektrostatisches Mikrophon
DE864696C (de) * 1942-04-01 1953-01-26 Telefunken Gmbh Kondensatormikrofon
US2944119A (en) * 1957-12-20 1960-07-05 Philco Corp Transducers
US3041418A (en) * 1960-01-14 1962-06-26 Rca Corp Transducers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE350499C (de) * 1922-03-21 Joseph Engl Dr Elektrostatisches Telephon
DE892773C (de) * 1941-04-17 1953-10-12 Siemens Ag Kondensator-Mikrofon

Also Published As

Publication number Publication date
US3118979A (en) 1964-01-21
NL281794A (en:Method)
GB1014781A (en) 1965-12-31

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