ATA189775A - Elektrostatischer wandler - Google Patents

Elektrostatischer wandler

Info

Publication number
ATA189775A
ATA189775A AT189775A AT189775A ATA189775A AT A189775 A ATA189775 A AT A189775A AT 189775 A AT189775 A AT 189775A AT 189775 A AT189775 A AT 189775A AT A189775 A ATA189775 A AT A189775A
Authority
AT
Austria
Prior art keywords
electrostatic converter
electrostatic
converter
Prior art date
Application number
AT189775A
Other languages
English (en)
Other versions
AT332464B (de
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of ATA189775A publication Critical patent/ATA189775A/de
Application granted granted Critical
Publication of AT332464B publication Critical patent/AT332464B/de

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
    • 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)
AT189775A 1974-03-15 1975-03-12 Elektrostatischer wandler AT332464B (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
ATA189775A true ATA189775A (de) 1976-01-15
AT332464B AT332464B (de) 1976-09-27

Family

ID=19820964

Family Applications (1)

Application Number Title Priority Date Filing Date
AT189775A AT332464B (de) 1974-03-15 1975-03-12 Elektrostatischer wandler

Country Status (7)

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

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
PT2222908E (pt) * 2007-12-06 2013-03-28 3M Innovative Properties Co Tecidos de eletretos com aditivos que intensificam as cargas
EP2297086A4 (de) * 2008-06-02 2012-01-25 3M Innovative Properties Co Ladungssteigernde zusätze für elektrete
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
AU2009255469B2 (en) * 2008-06-02 2012-03-29 3M Innovative Properties Company Electret webs with charge-enhancing additives
US20110091717A1 (en) * 2008-06-30 2011-04-21 Weiss Douglas E Method for in situ formation of metal nanoclusters within a porous substrate field
KR20110127696A (ko) 2009-02-20 2011-11-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 항미생물 일렉트릿 웨브
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 (de) * 1972-07-21 1974-01-23

Also Published As

Publication number Publication date
JPS50128520A (de) 1975-10-09
JPS5951199B2 (ja) 1984-12-12
USB557274I5 (de) 1976-03-23
DE2510279A1 (de) 1975-09-18
US4016375A (en) 1977-04-05
FR2289089B3 (de) 1977-11-18
NL7403471A (nl) 1975-09-17
GB1504314A (en) 1978-03-15
NL179104C (nl) 1986-07-01
FR2289089A1 (fr) 1976-05-21
DE2510279C2 (de) 1982-04-15
AT332464B (de) 1976-09-27
NL179104B (nl) 1986-02-03

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties