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)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
NL65892D 1943-03-04 NL65892C (fr)

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 (fr)

Family

ID=23897845

Family Applications (1)

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

Country Status (5)

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

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 (28)

* 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 (fr) * 1971-02-19 1972-09-29 Cepe
FR2127184A5 (fr) * 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 (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
KR100287481B1 (ko) * 1997-05-28 2001-08-07 무라타 야스타카 진동자이로스코프
JP2001036376A (ja) * 1999-07-23 2001-02-09 Murata Mfg Co Ltd 圧電共振子及び圧電部品
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
US8188800B2 (en) 2008-11-07 2012-05-29 Greenray Industries, Inc. Crystal oscillator with reduced acceleration sensitivity
US8446078B2 (en) * 2009-03-26 2013-05-21 Sand 9, 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
BE468392A (fr)
FR940632A (fr) 1948-12-17
GB578791A (en) 1946-07-11
US2410825A (en) 1946-11-12

Similar Documents

Publication Publication Date Title
FR964838A (fr)
FR961832A (fr)
JPS33009395B1 (fr)
FR56536E (fr)
NL66896C (fr)
FR885000A (fr)
FR887394A (fr)
DK68884C (fr)
FR879665A (fr)
BE457980A (fr)
BE448632A (fr)
BE459179A (fr)
BE452578A (fr)
BE458965A (fr)
BE455158A (fr)
BE455284A (fr)
BE468392A (fr)
BE455855A (fr)
BE456747A (fr)
BE457089A (fr)
BE473444A (fr)
BE477596A (fr)
BE454075A (fr)
BE448692A (fr)
BE451882A (fr)