SE454122B - Akustisk omvandlare av en riktningskarakteristisk och innefattande en elektretfolie anbragt direkt pa en motelektrodplatta - Google Patents

Akustisk omvandlare av en riktningskarakteristisk och innefattande en elektretfolie anbragt direkt pa en motelektrodplatta

Info

Publication number
SE454122B
SE454122B SE8206380A SE8206380A SE454122B SE 454122 B SE454122 B SE 454122B SE 8206380 A SE8206380 A SE 8206380A SE 8206380 A SE8206380 A SE 8206380A SE 454122 B SE454122 B SE 454122B
Authority
SE
Sweden
Prior art keywords
metal
foil
discrete areas
metal electrode
plate
Prior art date
Application number
SE8206380A
Other languages
English (en)
Swedish (sv)
Other versions
SE8206380D0 (sv
SE8206380L (sv
Inventor
C D G Stockbridge
Original Assignee
Western Electric Co
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 filed Critical Western Electric Co
Publication of SE8206380D0 publication Critical patent/SE8206380D0/xx
Publication of SE8206380L publication Critical patent/SE8206380L/
Publication of SE454122B publication Critical patent/SE454122B/sv

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49226—Electret making

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
SE8206380A 1981-11-20 1982-11-10 Akustisk omvandlare av en riktningskarakteristisk och innefattande en elektretfolie anbragt direkt pa en motelektrodplatta SE454122B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/323,668 US4429190A (en) 1981-11-20 1981-11-20 Continuous strip electret transducer array

Publications (3)

Publication Number Publication Date
SE8206380D0 SE8206380D0 (sv) 1982-11-10
SE8206380L SE8206380L (sv) 1983-05-21
SE454122B true SE454122B (sv) 1988-03-28

Family

ID=23260209

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8206380A SE454122B (sv) 1981-11-20 1982-11-10 Akustisk omvandlare av en riktningskarakteristisk och innefattande en elektretfolie anbragt direkt pa en motelektrodplatta

Country Status (7)

Country Link
US (1) US4429190A (de)
JP (1) JPS5895498A (de)
CA (1) CA1182551A (de)
DE (1) DE3242555A1 (de)
FR (1) FR2517157B1 (de)
NL (1) NL8204509A (de)
SE (1) SE454122B (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077600A (ja) * 1983-10-05 1985-05-02 Kureha Chem Ind Co Ltd アレイ型超音波探触子の製造方法
DE3807251A1 (de) * 1988-03-05 1989-09-14 Sennheiser Electronic Kapazitiver schallwandler
GB8924393D0 (en) * 1989-10-30 1989-12-20 Marconi Co Ltd Transducer testing
US5206557A (en) * 1990-11-27 1993-04-27 Mcnc Microelectromechanical transducer and fabrication method
US5388163A (en) * 1991-12-23 1995-02-07 At&T Corp. Electret transducer array and fabrication technique
FR2688644B1 (fr) * 1992-03-11 1997-05-23 Blanchet Vincent Microphone a capteur fractionne.
US5479061A (en) * 1992-12-31 1995-12-26 University Of North Carolina Pleated sheet microelectromechanical transducer
DE59801138D1 (de) * 1997-04-10 2001-09-06 Interkom Electronic Kock & Mre Schallaufnahmeeinrichtung, insbesondere für eine sprechstelle
FI103747B (fi) 1998-01-29 1999-08-31 Emf Acoustics Oy Ltd Värähtelymuunninyksikkö
WO2007024909A1 (en) * 2005-08-23 2007-03-01 Analog Devices, Inc. Multi-microphone system
US9894434B2 (en) 2015-12-04 2018-02-13 Sennheiser Electronic Gmbh & Co. Kg Conference system with a microphone array system and a method of speech acquisition in a conference system
US11064291B2 (en) 2015-12-04 2021-07-13 Sennheiser Electronic Gmbh & Co. Kg Microphone array system
DE102017107958B4 (de) * 2017-04-12 2018-11-15 AIFC Unternehmensförderungsgesellschaft mbH & Co. KG Lautsprecher mit aufrollbarer Membrane

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121609A1 (de) * 1971-05-03 1972-11-09 Mikrofonbau Neckarelz Gmbh, Elektrotechnische Fabrik, 6952 Neckarelz Elektrostatischer Schallwandler mit Gegenelektrode aus Sintermetall
SE362571B (de) * 1971-12-02 1973-12-10 Ericsson Telefon Ab L M
US3821491A (en) * 1972-05-15 1974-06-28 Amperex Electronic Corp Microphone construction
SE7411457L (de) * 1973-09-15 1975-03-17 Bowers And Wilkins Electronics
CA1059610A (fr) * 1974-05-17 1979-07-31 Institut Francais Du Petrole Dispositif recepteur de grande longueur et de structure continue
US4311874A (en) * 1979-12-17 1982-01-19 Bell Telephone Laboratories, Incorporated Teleconference microphone arrays

Also Published As

Publication number Publication date
FR2517157A1 (fr) 1983-05-27
NL8204509A (nl) 1983-06-16
JPS5895498A (ja) 1983-06-07
SE8206380D0 (sv) 1982-11-10
CA1182551A (en) 1985-02-12
DE3242555A1 (de) 1983-05-26
US4429190A (en) 1984-01-31
FR2517157B1 (fr) 1986-11-28
SE8206380L (sv) 1983-05-21

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