CH230524A - Piezoelektrische Umwandlungsvorrichtung. - Google Patents

Piezoelektrische Umwandlungsvorrichtung.

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
Application number
Other languages
English (en)
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.)
Filing date
Publication date
Application filed by Synton Ag filed Critical Synton Ag
Publication of CH230524A publication Critical patent/CH230524A/de

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
CH230524D 1943-01-07 1943-01-07 Piezoelektrische Umwandlungsvorrichtung. CH230524A (de)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=4547818

Family Applications (1)

Application Number Title Priority Date Filing Date
CH230524D CH230524A (de) 1943-01-07 1943-01-07 Piezoelektrische Umwandlungsvorrichtung.

Country Status (2)

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

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
US11533568B1 (en) 2021-05-27 2022-12-20 Harman International Industries, Incorporated Structure-borne sound and vibration sensor
US11743656B2 (en) 2021-05-27 2023-08-29 Harman International Industries, Incorporated Multi-stage 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 (fr) 1946-11-20

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