IT952541B - Perfezionamento nei dispositivi risonanti a cristallo piezoelettri co - Google Patents

Perfezionamento nei dispositivi risonanti a cristallo piezoelettri co

Info

Publication number
IT952541B
IT952541B IT49440/72A IT4944072A IT952541B IT 952541 B IT952541 B IT 952541B IT 49440/72 A IT49440/72 A IT 49440/72A IT 4944072 A IT4944072 A IT 4944072A IT 952541 B IT952541 B IT 952541B
Authority
IT
Italy
Prior art keywords
piezoeletter
improvement
resonant devices
crystal resonant
crystal
Prior art date
Application number
IT49440/72A
Other languages
English (en)
Original Assignee
Oak Electro Netics Corp
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 Oak Electro Netics Corp filed Critical Oak Electro Netics Corp
Application granted granted Critical
Publication of IT952541B publication Critical patent/IT952541B/it

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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/0504—Holders; Supports for bulk acoustic wave devices
    • H03H9/0528—Holders; Supports for bulk acoustic wave devices consisting of clips
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/177—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator of the energy-trap type

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
IT49440/72A 1971-04-15 1972-04-07 Perfezionamento nei dispositivi risonanti a cristallo piezoelettri co IT952541B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13429271A 1971-04-15 1971-04-15

Publications (1)

Publication Number Publication Date
IT952541B true IT952541B (it) 1973-07-30

Family

ID=22462688

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49440/72A IT952541B (it) 1971-04-15 1972-04-07 Perfezionamento nei dispositivi risonanti a cristallo piezoelettri co

Country Status (7)

Country Link
US (1) US3684905A (it)
BE (1) BE782168A (it)
DE (1) DE2217941A1 (it)
FR (1) FR2136414A5 (it)
GB (1) GB1355165A (it)
IT (1) IT952541B (it)
NL (1) NL7204836A (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898489A (en) * 1974-03-04 1975-08-05 Motorola Inc Piezoelectric resonators including mass loading to attenuate spurious modes
US3918013A (en) * 1974-04-08 1975-11-04 Antonio Lungo Filter device
DE2641571B1 (de) * 1976-09-15 1977-06-08 Siemens Ag Als obertonquarz verwendeter dickenscherungsschwinger
US4365181A (en) * 1979-07-18 1982-12-21 Murata Manufacturing Co., Ltd. Piezoelectric vibrator with damping electrodes
EP0680142A1 (en) * 1985-04-11 1995-11-02 Toyo Communication Equipment Co. Ltd. Piezoelectric resonators for overtone oscillations
US5114777B2 (en) 1985-08-05 1997-11-18 Wangner Systems Corp Woven multilayer papermaking fabric having increased stability and permeability and method
JPH09168287A (ja) * 1995-12-14 1997-06-24 Seiko Instr Inc 超音波モータ
US20040036383A1 (en) * 2002-08-23 2004-02-26 Rubach Robert Walter Elliptical electrode for crystals
JP2007212751A (ja) * 2006-02-09 2007-08-23 Nippon Dempa Kogyo Co Ltd 球状又は半球状の結晶体の製造方法及び球状ｓａｗデバイスの製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA497732A (en) * 1953-11-17 Canadian Marconi Company Piezo-electric crystals
US3165651A (en) * 1959-12-01 1965-01-12 Rudolf H Bechmann Piezoelectric crystal apparatus
US3382381A (en) * 1965-05-27 1968-05-07 Piezo Technology Inc Tab plateback
US3564463A (en) * 1966-04-11 1971-02-16 Bell Telephone Labor Inc Monolithic piezoelectric filter having mass loaded electrodes for resonation regions acoustically coupled together
US3585418A (en) * 1969-07-22 1971-06-15 Clevite Corp Piezoelectric resonators and method of tuning the same

Also Published As

Publication number Publication date
DE2217941A1 (de) 1972-10-19
FR2136414A5 (it) 1972-12-22
US3684905A (en) 1972-08-15
GB1355165A (en) 1974-06-05
BE782168A (fr) 1972-07-31
NL7204836A (it) 1972-10-17

Similar Documents

Publication Publication Date Title
IT948720B (it) Perfezionamento nei giroscopi a laser
IT966367B (it) Perfezionamento nei dispositivi di presentazione a cristallo liquido
IT966393B (it) Perfezionamento negli orologi elettronici
IT1029523B (it) Perfezionamento negli elicotteri
IT966014B (it) Perfezionamento nei recipienti
IT973778B (it) Perfezionamento negli orologi elettronici
BR7204747D0 (pt) Aperfeicoamento em polimidas
IT952152B (it) Perfezionamento nei trasportatori
IT948337B (it) Perfezionamento nei temporizzatori
IT952541B (it) Perfezionamento nei dispositivi risonanti a cristallo piezoelettri co
BR7204735D0 (pt) Aperfeicoamento em polimidas
IT973904B (it) Perfezionamento nei quadranti di orologio
IT957845B (it) Perfezionamento nei vibratori
IT958655B (it) Perfezionamento negli oculometri
IT959184B (it) Insieme a vetri
BE771531A (fr) Aerosolklep en sproeikop
IT949698B (it) Perfezionamento nei trasportatori
SE383066B (sv) Katodstralror forsett med en luminiscensskerm
IT1045680B (it) Perfezionamento nei giroscopi
BE784828A (fr) Antihalolagen in fotografisch materiaal
AT347505B (de) Abstimmanzeigevorrichtung
IT957995B (it) Perfezionamento negli orologi
AR198195A1 (es) Mejoras en una estructura de vidrio
IT973876B (it) Perfezionamento nei dispositivi stampatori
IT961877B (it) Perfezionamento nei dispositivi a semiconduttori