DE2510279C2 - Elektrostatischer Wandler - Google Patents

Elektrostatischer Wandler

Info

Publication number
DE2510279C2
DE2510279C2 DE2510279A DE2510279A DE2510279C2 DE 2510279 C2 DE2510279 C2 DE 2510279C2 DE 2510279 A DE2510279 A DE 2510279A DE 2510279 A DE2510279 A DE 2510279A DE 2510279 C2 DE2510279 C2 DE 2510279C2
Authority
DE
Germany
Prior art keywords
membrane
electrodes
converter
electret material
film
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
DE2510279A
Other languages
German (de)
English (en)
Other versions
DE2510279A1 (de
Inventor
Jan van Delft Turnhout
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE2510279A1 publication Critical patent/DE2510279A1/de
Application granted granted Critical
Publication of DE2510279C2 publication Critical patent/DE2510279C2/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DE2510279A 1974-03-15 1975-03-08 Elektrostatischer Wandler Expired DE2510279C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7403471,A NL179104C (nl) 1974-03-15 1974-03-15 Elektrostatische transducent.

Publications (2)

Publication Number Publication Date
DE2510279A1 DE2510279A1 (de) 1975-09-18
DE2510279C2 true DE2510279C2 (de) 1982-04-15

Family

ID=19820964

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2510279A Expired DE2510279C2 (de) 1974-03-15 1975-03-08 Elektrostatischer Wandler

Country Status (7)

Country Link
US (1) US4016375A (https=)
JP (1) JPS5951199B2 (https=)
AT (1) AT332464B (https=)
DE (1) DE2510279C2 (https=)
FR (1) FR2289089A1 (https=)
GB (1) GB1504314A (https=)
NL (1) NL179104C (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000029210A1 (fr) * 1998-11-18 2000-05-25 Daikin Industries, Ltd. Structure polymere contenant du fluor a adhesivite haute temperature, et materiau de glissement utilisant ladite structure
US8559660B2 (en) * 2007-07-12 2013-10-15 Industrial Technology Research Institute Electrostatic electroacoustic transducers
CA2708117C (en) * 2007-12-06 2015-08-25 John M. Sebastian Electret webs with charge-enhancing additives
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
BRPI0909855A2 (pt) * 2008-06-02 2015-10-06 3M Innovative Properties Co "aditivos acentuadores de carga para eletretos"
US8613795B2 (en) * 2008-06-02 2013-12-24 3M Innovative Properties Company Electret webs with charge-enhancing additives
EP2303770B1 (en) * 2008-06-30 2014-07-09 3M Innovative Properties Company Method for in situ formation of metal nanoclusters within a porous substrate
WO2010096285A2 (en) 2009-02-20 2010-08-26 3M Innovative Properties Company Antimicrobial electret web
TWI708473B (zh) * 2019-09-27 2020-10-21 華碩電腦股份有限公司 致動器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711941A (en) * 1970-11-02 1973-01-23 Bell Telephone Labor Inc Fabrication of electret transducer elements using low energy electron beam
US3770711A (en) * 1972-01-31 1973-11-06 Du Pont Oriented structures of tetrafluoroethylene/perfluoro (alkyl vinyl ether) copolymer
NL7210088A (https=) * 1972-07-21 1974-01-23

Also Published As

Publication number Publication date
JPS50128520A (https=) 1975-10-09
ATA189775A (de) 1976-01-15
NL179104B (nl) 1986-02-03
JPS5951199B2 (ja) 1984-12-12
DE2510279A1 (de) 1975-09-18
FR2289089B3 (https=) 1977-11-18
USB557274I5 (https=) 1976-03-23
NL7403471A (nl) 1975-09-17
AT332464B (de) 1976-09-27
FR2289089A1 (fr) 1976-05-21
GB1504314A (en) 1978-03-15
US4016375A (en) 1977-04-05
NL179104C (nl) 1986-07-01

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Legal Events

Date Code Title Description
OD Request for examination
8125 Change of the main classification
D2 Grant after examination
8339 Ceased/non-payment of the annual fee