BE468392A - - Google Patents

Info

Publication number
BE468392A
BE468392A BE468392DA BE468392A BE 468392 A BE468392 A BE 468392A BE 468392D A BE468392D A BE 468392DA BE 468392 A BE468392 A BE 468392A
Authority
BE
Belgium
Application number
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.)
Publication of BE468392A publication Critical patent/BE468392A/xx

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58Multiple crystal filters
    • H03H9/582Multiple crystal filters implemented with thin-film techniques
    • H03H9/583Multiple crystal filters implemented with thin-film techniques comprising a plurality of piezoelectric layers acoustically coupled
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
BE468392D 1943-03-04 BE468392A (enrdf_load_stackoverflow)

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
BE468392A true BE468392A (enrdf_load_stackoverflow)

Family

ID=23897845

Family Applications (1)

Application Number Title Priority Date Filing Date
BE468392D BE468392A (enrdf_load_stackoverflow) 1943-03-04

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458176A1 (fr) * 1979-05-29 1980-12-26 Onera (Off Nat Aerospatiale) Combinaison de resonateurs piezo-electriques

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR861808A (fr) * 1939-08-02 1941-02-18 Materiel Telephonique éléments piezo-électriques
US2875354A (en) * 1954-01-29 1959-02-24 Branson Instr Piezoelectric transducer
DE1108275B (de) * 1955-09-28 1961-06-08 Gen Electric Piezoelektrischer Verbundkoerper
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
US3091707A (en) * 1960-04-07 1963-05-28 Bell Telephone Labor Inc Piezoelectric devices utilizing zinc oxide
US3093758A (en) * 1960-04-13 1963-06-11 Bell Telephone Labor Inc Piezoelectric devices utilizing cadmium sulfide
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 (de) * 1960-12-01 1966-01-20 Bosch Arma Corp Als randfreie Kreisscheibe ausgebildeter Biegeschwingungswandler zur Erzeugung von Schallschwingungen
US3408515A (en) * 1964-10-08 1968-10-29 Bell Telephone Labor Inc Second overtone dt-cut quartz resonator
FR2125759A5 (enrdf_load_stackoverflow) * 1971-02-19 1972-09-29 Cepe
FR2127184A5 (enrdf_load_stackoverflow) * 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
US4430596A (en) 1982-08-16 1984-02-07 Motorola, Inc. Temperature insensitive piezoelectric crystal mounting arrangement
AT389170B (de) * 1987-11-19 1989-10-25 Avl Verbrennungskraft Messtech Piezoelektrisches messelement
US5430342A (en) * 1993-04-27 1995-07-04 Watson Industries, Inc. Single bar type vibrating element angular rate sensor system
EP0881465B1 (en) * 1997-05-28 2005-12-21 Murata Manufacturing Co., Ltd. Vibrating gyroscope
JP2001036376A (ja) * 1999-07-23 2001-02-09 Murata Mfg Co Ltd 圧電共振子及び圧電部品
WO2005026678A1 (de) * 2003-09-17 2005-03-24 Kistler Holding Ag Mehrschichtiges piezoelektrisches messelement und ein druck- oder kraftsensor umfassend ein solches messelement
US8188800B2 (en) 2008-11-07 2012-05-29 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 (fr) * 1979-05-29 1980-12-26 Onera (Off Nat Aerospatiale) Combinaison de resonateurs piezo-electriques

Also Published As

Publication number Publication date
FR940632A (fr) 1948-12-17
NL65892C (enrdf_load_stackoverflow)
US2410825A (en) 1946-11-12
GB578791A (en) 1946-07-11

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