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CH230524A - Piezoelectric conversion device. - Google Patents

  • ️Sat Jan 15 1944

CH230524A - Piezoelectric conversion device. - Google Patents

Piezoelectric conversion device.

Info

Publication number
CH230524A
CH230524A CH230524DA CH230524A CH 230524 A CH230524 A CH 230524A CH 230524D A CH230524D A CH 230524DA CH 230524 A CH230524 A CH 230524A Authority
CH
Switzerland
Prior art keywords
conversion device
piezoelectric conversion
piezoelectric
conversion
Prior art date
1943-01-07
Application number
Other languages
German (de)
Inventor
Synton Aktiengesellschaft
Original Assignee
Synton Ag
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.)
1943-01-07
Filing date
1943-01-07
Publication date
1944-01-15
1943-01-07 Application filed by Synton Ag filed Critical Synton Ag
1944-01-15 Publication of CH230524A publication Critical patent/CH230524A/en

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/02—Microphones
    • 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H04R1/265—Spatial arrangements of separate transducers responsive to two or more frequency ranges of microphones
    • 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
    • H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
CH230524D 1943-01-07 1943-01-07 Piezoelectric conversion device. CH230524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH915877X 1943-01-07

Publications (1)

Publication Number Publication Date
CH230524A true CH230524A (en) 1944-01-15

Family

ID=4547818

Family Applications (1)

Application Number Title Priority Date Filing Date
CH230524D CH230524A (en) 1943-01-07 1943-01-07 Piezoelectric conversion device.

Country Status (2)

Country Link
CH (1) CH230524A (en)
FR (1) FR915877A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333029A (en) * 1979-09-04 1982-06-01 Baker Industries, Inc. Piezoelectric seismic sensor for intrusion detection
US5317305A (en) * 1992-01-30 1994-05-31 Campman James P Personal alarm device with vibrating accelerometer motion detector and planar piezoelectric hi-level sound generator
US5523644A (en) * 1990-05-16 1996-06-04 Witehira; Pita Piezoelectric motion sensor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150262A (en) * 1974-11-18 1979-04-17 Hiroshi Ono Piezoelectric bone conductive in ear voice sounds transmitting and receiving apparatus
JPS51118424A (en) * 1975-04-10 1976-10-18 Nippon Atsudenki Kk Oscillation pick-up
US11743656B2 (en) 2021-05-27 2023-08-29 Harman International Industries, Incorporated Multi-stage structure-borne sound and vibration sensor
US11533568B1 (en) 2021-05-27 2022-12-20 Harman International Industries, Incorporated Structure-borne sound and vibration sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333029A (en) * 1979-09-04 1982-06-01 Baker Industries, Inc. Piezoelectric seismic sensor for intrusion detection
US5523644A (en) * 1990-05-16 1996-06-04 Witehira; Pita Piezoelectric motion sensor
US5317305A (en) * 1992-01-30 1994-05-31 Campman James P Personal alarm device with vibrating accelerometer motion detector and planar piezoelectric hi-level sound generator

Also Published As

Publication number Publication date
FR915877A (en) 1946-11-20

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