CH625389GA3 - - Google Patents

Download PDF

Info

Publication number
CH625389GA3
CH625389GA3 CH113777A CH113777A CH625389GA3 CH 625389G A3 CH625389G A3 CH 625389GA3 CH 113777 A CH113777 A CH 113777A CH 113777 A CH113777 A CH 113777A CH 625389G A3 CH625389G A3 CH 625389GA3
Authority
CH
Switzerland
Prior art keywords
disc
electrodes
face
vibrator
piezoelectric
Prior art date
Application number
CH113777A
Other versions
CH625389B (en
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
Publication of CH625389B publication Critical patent/CH625389B/en
Priority claimed from JP863376A external-priority patent/JPS5291670A/en
Priority claimed from JP51014690A external-priority patent/JPS5847886B2/en
Application filed filed Critical
Publication of CH625389GA3 publication Critical patent/CH625389GA3/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

A piezoelectric flexural vibrator comprises a circular or polygonal disc of piezoelectric crystal such as quartz, lithium tantalate or lithium niobate which is formed by chemical etching and is supported around its periphery with electrodes on opposite faces comprising a pair of electrodes each of which is divided into two portions of which one is on one face of the disc and the other is on the opposite face of the disc. By reason of its small size - 25 to 150 microns thick and less than 10mm across - and its good frequency-temperature characteristics, the vibrator is suitable for use in wristwatches.
CH113777A 1976-01-29 1977-01-31 PIEZO-ELECTRIC CRYSTAL VIBRATOR. CH625389B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP863376A JPS5291670A (en) 1976-01-29 1976-01-29 Piezoelectric vibrator
JP51014690A JPS5847886B2 (en) 1976-02-13 1976-02-13 piezoelectric vibrator

Publications (2)

Publication Number Publication Date
CH625389B CH625389B (en)
CH625389GA3 true CH625389GA3 (en) 1981-09-30

Family

ID=26343193

Family Applications (1)

Application Number Title Priority Date Filing Date
CH113777A CH625389B (en) 1976-01-29 1977-01-31 PIEZO-ELECTRIC CRYSTAL VIBRATOR.

Country Status (6)

Country Link
US (1) US4112323A (en)
CH (1) CH625389B (en)
DE (1) DE2703334A1 (en)
FR (1) FR2339992A1 (en)
GB (1) GB1536066A (en)
HK (1) HK48282A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479581A (en) * 1977-12-07 1979-06-25 Seiko Instr & Electronics Ltd Thickness-width slide crystal vibrator
DE2847944A1 (en) * 1978-11-04 1980-05-14 Bosch Gmbh Robert Piezoelectric crystal resonator - with electrode positions and crystal shapes minimising second mode resonances by use of square crystal disc r mounted above base-plate
US4430596A (en) 1982-08-16 1984-02-07 Motorola, Inc. Temperature insensitive piezoelectric crystal mounting arrangement
GB2160920B (en) * 1984-06-26 1987-10-14 Draftex Ind Ltd Sealing strip
GB8507596D0 (en) * 1985-03-23 1985-05-01 Fulmer Res Inst Ltd Piezoelectric transducer
JPS6216611A (en) * 1985-07-15 1987-01-24 Seikosha Co Ltd Plate-shaped thickness-shear crystal resonator
US5978972A (en) * 1996-06-14 1999-11-09 Johns Hopkins University Helmet system including at least three accelerometers and mass memory and method for recording in real-time orthogonal acceleration data of a head
KR101928359B1 (en) 2012-09-11 2018-12-12 삼성전자주식회사 Resonance apparatus for processing electric loss using conductive material and the method for manufacturing reasonator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1930536A (en) * 1927-11-19 1933-10-17 Westinghouse Electric & Mfg Co Oscillation generator
DE664983C (en) * 1932-10-13 1938-10-01 Telefunken Gmbh Oscillator or resonator designed as a piezoelectric crystal with low radiation damping
FR911761A (en) * 1945-02-02 1946-07-19 Thomson Houston Comp Francaise Piezoelectric crystal refinements
US2472179A (en) * 1947-06-11 1949-06-07 Tibbetts Lab Inc Piezoelectric device
US2994791A (en) * 1957-05-27 1961-08-01 Shinada Toshio Electrode of a quartz oscillator
US2967957A (en) * 1957-09-17 1961-01-10 Massa Frank Electroacoustic transducer
US3408515A (en) * 1964-10-08 1968-10-29 Bell Telephone Labor Inc Second overtone dt-cut quartz resonator
US3345588A (en) * 1964-11-12 1967-10-03 Gen Instrument Corp Annular piezoelectric filter with arcuate electrodes
US3465178A (en) * 1966-09-13 1969-09-02 Us Army Driven-boundary piezoelectric crystals
US3617780A (en) * 1967-10-26 1971-11-02 Hewlett Packard Co Piezoelectric transducer and method for mounting same
US3488530A (en) * 1968-04-22 1970-01-06 North American Rockwell Piezoelectric microresonator
USRE26707E (en) 1969-02-11 1969-11-04 Crystal resonators
US3909641A (en) * 1971-03-13 1975-09-30 Meidensha Electric Mfg Co Ltd Holder device for a vibrator

Also Published As

Publication number Publication date
FR2339992A1 (en) 1977-08-26
CH625389B (en)
FR2339992B1 (en) 1982-04-30
US4112323A (en) 1978-09-05
HK48282A (en) 1982-11-26
GB1536066A (en) 1978-12-20
DE2703334A1 (en) 1977-08-04

Similar Documents

Publication Publication Date Title
FR2338607A1 (en) QUARTZ RESONATOR WITH NON-ADHERENT CRYSTAL ELECTRODES
JPS5252597A (en) Bend type piezoelectric vibrator
FR2339992B1 (en)
GB2006520A (en) Piezo-electric resonator
GB1538137A (en) Thickness-shear quartz crystal vibrator
GB1509833A (en) Thickness-shear crystal vibrator
JPS532097A (en) Quartz crystal oscillator
JPS51126785A (en) Frequency-adjusting method of thickness-shear-crystal vibration use cr ystal piece
JPS5343490A (en) Tuning fork type crystal vibrator
JPS51118981A (en) Frequency regulator of bending piez/-electric oscillator
JPS52108838A (en) Liquid crystal indicating element
JPS5360594A (en) Electronic watch
GB918652A (en) Piezoelectric crystal device
JPS52119195A (en) Crystal resonator in tuning fork type
JPS5320886A (en) Short-side piezoelectric oscillator
JPS5320891A (en) Piezoelectric oscillator
FR2339991A1 (en) PIEZO-ELECTRIC CRYSTAL VIBRATOR OF THICKNESS SHEAR TYPE
GB1465970A (en) Oscillator
JPS5386190A (en) Electrode structure of tuning fork type crystal vibrator and its formationmethod
JPS53116796A (en) Lithium tantalate vibrator
JPS52107796A (en) Production of miniature piezo-vibrator
JPS5367396A (en) Fabrication method of piezoelectric crystal for elastic surface waveelement
JPS5419391A (en) Crystal vibrator
JPS5298492A (en) Piezo-electric vibrator
JPS5387687A (en) Miniature thickness sliding crystal vibrator

Legal Events

Date Code Title Description
PL Patent ceased