FR915877A - Dispositif de transformation piézo-électrique à excitation par le support - Google Patents

Dispositif de transformation piézo-électrique à excitation par le support

Info

Publication number: FR915877A
Authority: FR; France
Prior art keywords: excitation; support; transformation device; piezoelectric transformation; piezoelectric
Prior art date: 1943-01-07
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

Other languages

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.)

Synton AG

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

1945-10-16

Publication date

1946-11-20

1945-10-16 Application filed by Synton AG filed Critical Synton AG

1946-11-20 Application granted granted Critical

1946-11-20 Publication of FR915877A publication Critical patent/FR915877A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)

FR915877D 1943-01-07 1945-10-16 Dispositif de transformation piézo-électrique à excitation par le support Expired FR915877A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
FR915877A true FR915877A (fr)	1946-11-20

Family

ID=4547818

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR915877D Expired FR915877A (fr)	1943-01-07	1945-10-16	Dispositif de transformation piézo-électrique à excitation par le support

Country Status (2)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS51118424A (en) *	1975-04-10	1976-10-18	Nippon Atsudenki Kk	Oscillation pick-up
FR2441983A1 (fr) *	1974-11-18	1980-06-13	Hiroshi Ono	Dispositif de transmission et reception de sons vocaux
EP4096242A1 (fr) *	2021-05-27	2022-11-30	Harman International Industries, Incorporated	Capteur de sons et de vibrations porté par une structure à plusieurs étages
US11533568B1 (en)	2021-05-27	2022-12-20	Harman International Industries, Incorporated	Structure-borne sound and vibration sensor
US12436025B2 (en)	2021-05-27	2025-10-07	Harman International Industries, Incorporated	Multi-stage structure-borne sound and vibration sensor

Families Citing this family (4)

* 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
JPS5667731A (en)	1979-11-06	1981-06-08	Nissan Motor Co Ltd	Knocking sensor
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

1943
- 1943-01-07 CH CH230524D patent/CH230524A/de unknown
1945
- 1945-10-16 FR FR915877D patent/FR915877A/fr not_active Expired

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2441983A1 (fr) *	1974-11-18	1980-06-13	Hiroshi Ono	Dispositif de transmission et reception de sons vocaux
JPS51118424A (en) *	1975-04-10	1976-10-18	Nippon Atsudenki Kk	Oscillation pick-up
EP4096242A1 (fr) *	2021-05-27	2022-11-30	Harman International Industries, Incorporated	Capteur de sons et de vibrations porté par une structure à plusieurs étages
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
US12436025B2 (en)	2021-05-27	2025-10-07	Harman International Industries, Incorporated	Multi-stage structure-borne sound and vibration sensor

Also Published As

Publication number	Publication date
CH230524A (de)	1944-01-15

Publication	Publication Date	Title
CH272165A (fr)	1950-11-30	Dispositif piézoélectrique.
CH264443A (fr)	1949-10-15	Dispositif piézoélectrique.
FR915877A (fr)	1946-11-20	Dispositif de transformation piézo-électrique à excitation par le support
FR893103A (fr)	1944-05-31	Dispositif propulseur
FR984964A (fr)	1951-07-12	Dispositif piézo-électrique réglable
CH242902A (it)	1946-06-15	Dispositivo di collegamento.
CH256718A (de)	1948-08-31	Kristalldetektor.
FR905427A (fr)	1945-12-04	Dispositif à genouillère
CH234145A (de)	1944-09-15	Orientierungskompass.
FR895525A (fr)	1945-01-26	Plantoir
DK73703C (da)	1952-01-28	Piezoelektrisk krystalapparat.
FR987950A (fr)	1951-08-21	Dispositif piézo-électrique réglable
CH240310A (fr)	1945-12-15	Dispositif piézo-électrique à écran.
ES8821Y (es)	1945-09-01	Dispositivo sujetador.
DK67055C (da)	1948-06-21	Piezoelektrisk Svingningskrystal.
FR922692A (fr)	1947-06-16	Dispositif thermo-électrique
FR900564A (fr)	1945-07-03	Dispositif de démultiplication progressive
DK65271C (da)	1946-12-30	Anordning ved Kølerum.
DK65082C (da)	1946-11-18	Anordning ved Essefyr.
ES160420A1 (es)	1943-06-01	Dispositivo impresor
DK63421C (da)	1945-04-23	Anordning ved Radsaamaskiner.
DK63788C (da)	1945-08-06	Anordning ved Fiskefarsmaskiner.
DK63012C (da)	1944-12-11	Anordning ved Cylinderlaase.
FR914053A (fr)	1946-09-27	Support de dactylographie
DK69097C (da)	1949-05-02	Anordning ved krystalpickups.