NL65892C - - Google Patents

Info

Publication number
NL65892C
NL65892C NL65892DA NL65892C NL 65892 C NL65892 C NL 65892C NL 65892D A NL65892D A NL 65892DA NL 65892 C NL65892 C NL 65892C
Authority
NL
Netherlands
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 NL65892C publication Critical patent/NL65892C/xx

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 piezoelectric 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

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)
NL65892D 1943-03-04 NL65892C (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
NL65892C true NL65892C (en)

Family

ID=23897845

Family Applications (1)

Application Number Title Priority Date Filing Date
NL65892D NL65892C (en) 1943-03-04

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
DE69832843T2 (en) * 1997-05-28 2006-07-27 Murata Mfg. Co., Ltd., Nagaokakyo vibration gyro
JP2001036376A (en) * 1999-07-23 2001-02-09 Murata Mfg Co Ltd Piezoelectric resonator and piezoelectric component
WO2005026678A1 (en) * 2003-09-17 2005-03-24 Kistler Holding Ag Multilayer 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
GB578791A (en) 1946-07-11
FR940632A (en) 1948-12-17
BE468392A (en)
US2410825A (en) 1946-11-12

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