FR940632A - Piezoelectric crystal device - Google Patents

Piezoelectric crystal device

Info

Publication number
FR940632A
FR940632A FR940632DA FR940632A FR 940632 A FR940632 A FR 940632A FR 940632D A FR940632D A FR 940632DA FR 940632 A FR940632 A FR 940632A
Authority
FR
France
Prior art keywords
crystal device
piezoelectric crystal
piezoelectric
crystal
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.)
Expired
Application number
Other languages
French (fr)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR940632A publication Critical patent/FR940632A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/582—Multiple crystal filters implemented with thin-film techniques
    • H03H9/583—Multiple crystal filters implemented with thin-film techniques comprising a plurality of piezoelectric layers acoustically coupled
    • 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
FR940632D 1943-03-04 1946-08-27 Piezoelectric crystal device Expired FR940632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US477915A US2410825A (en) 1943-03-04 1943-03-04 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
FR940632A true FR940632A (en) 1948-12-17

Family

ID=23897845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR940632D Expired FR940632A (en) 1943-03-04 1946-08-27 Piezoelectric crystal device

Country Status (5)

Country Link
US (1) US2410825A (en)
BE (1) BE468392A (en)
FR (1) FR940632A (en)
GB (1) GB578791A (en)
NL (1) NL65892C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458176A1 (en) * 1979-05-29 1980-12-26 Onera (Off Nat Aerospatiale) Piezoelectric resonator insensitive to acceleration - has pair of elements which rotate in opposite directions

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR861808A (en) * 1939-08-02 1941-02-18 Materiel Telephonique piezoelectric elements
US2875354A (en) * 1954-01-29 1959-02-24 Branson Instr Piezoelectric transducer
DE1108275B (en) * 1955-09-28 1961-06-08 Gen Electric Piezoelectric composite body
US2978597A (en) * 1956-03-14 1961-04-04 Harris Transducer Corp Circuit element transducer
US2984111A (en) * 1959-06-19 1961-05-16 Bosch Arma Corp Accelerometer
US3093758A (en) * 1960-04-13 1963-06-11 Bell Telephone Labor Inc Piezoelectric devices utilizing cadmium sulfide
US3091707A (en) * 1960-04-07 1963-05-28 Bell Telephone Labor Inc Piezoelectric devices utilizing zinc oxide
US3090876A (en) * 1960-04-13 1963-05-21 Bell Telephone Labor Inc Piezoelectric devices utilizing aluminum nitride
US3234488A (en) * 1960-09-12 1966-02-08 Bell Telephone Labor Inc Light modulable circuit element
DE1209336B (en) * 1960-12-01 1966-01-20 Bosch Arma Corp Bending vibration transducer designed as an edge-free circular disc for generating sound vibrations
US3408515A (en) * 1964-10-08 1968-10-29 Bell Telephone Labor Inc Second overtone dt-cut quartz resonator
FR2125759A5 (en) * 1971-02-19 1972-09-29 Cepe
FR2127184A5 (en) * 1971-02-26 1972-10-13 Cepe
US3721841A (en) * 1971-06-16 1973-03-20 Motorola Inc Contact for piezoelectric crystals
US4344010A (en) * 1979-10-19 1982-08-10 The United States Of America As Represented By The Secretary Of The Army Acceleration resistant combination of opposite-handed piezoelectric crystals
US4365182A (en) * 1980-10-14 1982-12-21 The United States Of America As Represented By The Secretary Of The Army Method of fabricating acceleration resistant crystal resonators and acceleration resistant crystal resonators so formed
US4649525A (en) * 1981-12-08 1987-03-10 Mobil Oil Corporation Shear wave acoustic logging system
US4410822A (en) * 1982-06-17 1983-10-18 The United States Of America As Represented By The Secretary Of The Army Acceleration-resistant crystal resonator
AT389170B (en) * 1987-11-19 1989-10-25 Avl Verbrennungskraft Messtech PIEZOELECTRIC MEASURING ELEMENT
US5430342A (en) * 1993-04-27 1995-07-04 Watson Industries, Inc. Single bar type vibrating element angular rate sensor system
EP1406062B1 (en) * 1997-05-28 2012-05-30 Murata Manufacturing Co., Ltd. Vibrating gyroscope
JP2001036376A (en) * 1999-07-23 2001-02-09 Murata Mfg Co Ltd Piezoelectric resonator and piezoelectric component
US7548012B2 (en) * 2003-09-17 2009-06-16 Kistler Holding, Ag Multi-layer piezoelectric measuring element, and pressure sensor or force sensor comprising such a measuring element
EP2356743A1 (en) 2008-11-07 2011-08-17 Greenray Industries, Inc. Crystal oscillator with reduced acceleration sensitivity
WO2010110918A1 (en) * 2009-03-26 2010-09-30 Sand9, Inc. Mechanical resonating structures and methods
US9299910B1 (en) 2012-05-17 2016-03-29 Analog Devices, Inc. Resonator anchors and related apparatus and methods
US9954513B1 (en) 2012-12-21 2018-04-24 Analog Devices, Inc. Methods and apparatus for anchoring resonators
US9634227B1 (en) 2013-03-06 2017-04-25 Analog Devices, Inc. Suppression of spurious modes of vibration for resonators and related apparatus and methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458176A1 (en) * 1979-05-29 1980-12-26 Onera (Off Nat Aerospatiale) Piezoelectric resonator insensitive to acceleration - has pair of elements which rotate in opposite directions

Also Published As

Publication number Publication date
BE468392A (en)
GB578791A (en) 1946-07-11
US2410825A (en) 1946-11-12
NL65892C (en)

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