JPS5951199B2 - 静電変換器 - Google Patents

静電変換器

Info

Publication number
JPS5951199B2
JPS5951199B2 JP50029180A JP2918075A JPS5951199B2 JP S5951199 B2 JPS5951199 B2 JP S5951199B2 JP 50029180 A JP50029180 A JP 50029180A JP 2918075 A JP2918075 A JP 2918075A JP S5951199 B2 JPS5951199 B2 JP S5951199B2
Authority
JP
Japan
Prior art keywords
electret
electret material
electrode
foil
diaphragm
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
JP50029180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS50128520A (enExample
Inventor
フアン ツルンホウツ ヤン
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
Koninklijke Philips Electronics 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of JPS50128520A publication Critical patent/JPS50128520A/ja
Priority to US05/629,363 priority Critical patent/US4056782A/en
Publication of JPS5951199B2 publication Critical patent/JPS5951199B2/ja
Expired 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
    • 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)
JP50029180A 1974-03-15 1975-03-12 静電変換器 Expired JPS5951199B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/629,363 US4056782A (en) 1975-03-12 1975-11-06 Wire transmission noise suppressor for a vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7403471 1974-03-15
NLAANVRAGE7403471,A NL179104C (nl) 1974-03-15 1974-03-15 Elektrostatische transducent.

Publications (2)

Publication Number Publication Date
JPS50128520A JPS50128520A (enExample) 1975-10-09
JPS5951199B2 true JPS5951199B2 (ja) 1984-12-12

Family

ID=19820964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50029180A Expired JPS5951199B2 (ja) 1974-03-15 1975-03-12 静電変換器

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
US6726994B1 (en) * 1998-11-18 2004-04-27 Daikin Industries, Ltd. Structural member of fluorine-containing polymer having adhesive property at high temperature and sliding material produced by using same
US8559660B2 (en) * 2007-07-12 2013-10-15 Industrial Technology Research Institute Electrostatic electroacoustic transducers
ES2401944T3 (es) * 2007-12-06 2013-04-25 3M Innovative Properties Company Bandas de electreto con aditivos mejoradores de la carga eléctrica
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
WO2009148747A2 (en) * 2008-06-02 2009-12-10 3M Innovative Properties Company Charge-enhancing additives for electrets
BRPI0909959B1 (pt) * 2008-06-02 2018-11-13 3M Innovative Properties Co manta de eletreto e meio de filtro à base de eletreto
EP2303770B1 (en) * 2008-06-30 2014-07-09 3M Innovative Properties Company Method for in situ formation of metal nanoclusters within a porous substrate
EP2398956A2 (en) 2009-02-20 2011-12-28 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
JPS50128520A (enExample) 1975-10-09
AT332464B (de) 1976-09-27
NL179104B (nl) 1986-02-03
US4016375A (en) 1977-04-05
FR2289089B3 (enExample) 1977-11-18
NL7403471A (nl) 1975-09-17
ATA189775A (de) 1976-01-15
DE2510279C2 (de) 1982-04-15
NL179104C (nl) 1986-07-01
FR2289089A1 (fr) 1976-05-21
GB1504314A (en) 1978-03-15
DE2510279A1 (de) 1975-09-18
USB557274I5 (enExample) 1976-03-23

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