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 (enExample)
JP (1) JPS5951199B2 (enExample)
AT (1) AT332464B (enExample)
DE (1) DE2510279C2 (enExample)
FR (1) FR2289089A1 (enExample)
GB (1) GB1504314A (enExample)
NL (1) NL179104C (enExample)

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
US8529671B2 (en) * 2007-12-06 2013-09-10 3M Innovative Properties Comany Electret webs with charge-enhancing additives
RU2448207C1 (ru) * 2008-06-02 2012-04-20 3М Инновейтив Пропертиз Компани Электретные полотна с усиливающими заряд добавками
US20110137082A1 (en) * 2008-06-02 2011-06-09 Li Fuming B Charge-enhancing additives for electrets
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
US20110091717A1 (en) * 2008-06-30 2011-04-21 Weiss Douglas E Method for in situ formation of metal nanoclusters within a porous substrate field
US20110290119A1 (en) 2009-02-20 2011-12-01 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 (enExample) * 1972-07-21 1974-01-23

Also Published As

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

Similar Documents

Publication Publication Date Title
DE2160176C3 (de) Elektroakustischer Wandler
DE2944506C2 (de) Piezoelektrischer Wandler für elektrische Saiteninstrumente
DE69215599T2 (de) Biegsame piezoelektrische Vorrichtung
DE2510279A1 (de) Elektrostatischer wandler
DE2339433B2 (de) Elektroakustischer Wandler nach dem elektrostatischen Prinzip
DE3047834A1 (de) Bimorpher transduktor aus polymermaterial
DE1462179B2 (de) Energieumwandler zur Umformung mechanischer Drücke
DE2933425A1 (de) Membran fuer einen lautsprecher
DE2153784B2 (de) Verfahren zum Herstellen eines Folienelektrets
DE3020879A1 (de) Lautsprechereinrichtung
DE2239743C3 (de) Verfahren zur Herstellung einer Membran für einen akustischen Wandler und Wandler mit einer nach diesem Verfahren hergestellten Membran
DE3143027A1 (de) Piezoelektrischer wandler
DE2333418A1 (de) Elektretfolie
DE3245067C2 (de) Lautsprechermembran
DE107680C (enExample)
AT239342B (de) Elektrostatischer Wandler
DE1065880B (enExample)
DE2134571A1 (de) Elektret
DE974931C (de) Aus erstarrtem Schaum bestehende Lautsprechermembran
DE2803168B2 (de) Elektromechanischer Wandler
EP0119982A3 (de) Monoaxial verstreckte Folien oder Bändchen auf Kunststoffbasis und Verfahren zu ihrer Herstellung
DE856617C (de) Membran aus thermoplastischen Kunststoffen
DE2444718C3 (de) Lautsprechermembran
DE1927962C3 (de) Rohrrichtmikrofon
DE881527C (de) Anordnung zum Schutz von Lautsprechern u. dgl. akustischen Geraeten gegen Feuchtigkeit, Staub, Daempfe u. dgl.

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