DE140614C - - Google Patents

Info

Publication number
DE140614C
DE140614C DENDAT140614D DE140614DA DE140614C DE 140614 C DE140614 C DE 140614C DE NDAT140614 D DENDAT140614 D DE NDAT140614D DE 140614D A DE140614D A DE 140614DA DE 140614 C DE140614 C DE 140614C
Authority
DE
Germany
Prior art keywords
membrane
electrode
electrodes
auxiliary
chamber
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.)
Active
Application number
DENDAT140614D
Other languages
German (de)
English (en)
Publication of DE140614C publication Critical patent/DE140614C/de
Active legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00Variable-resistance transducers
    • H04R21/02Microphones
    • H04R21/021Microphones with granular resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DENDAT140614D Active DE140614C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE140614C true DE140614C (enrdf_load_html_response)

Family

ID=408286

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT140614D Active DE140614C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE140614C (enrdf_load_html_response)

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