CH647384GA3 - - Google Patents

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Publication number
CH647384GA3
CH647384GA3 CH137180A CH137180A CH647384GA3 CH 647384G A3 CH647384G A3 CH 647384GA3 CH 137180 A CH137180 A CH 137180A CH 137180 A CH137180 A CH 137180A CH 647384G A3 CH647384G A3 CH 647384GA3
Authority
CH
Switzerland
Prior art keywords
tuning fork
vibrations
fork arms
electrodes
flexual
Prior art date
Application number
CH137180A
Other languages
French (fr)
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 filed Critical
Publication of CH647384GA3 publication Critical patent/CH647384GA3/fr

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
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
    • G04F5/063—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

A tuning fork type quartz crystal vibrator has electrodes formed on its surfaces with the electrodes being divided into separated portions along the length of the tuning fork arms such that opposite electric fields and charges are juxtaposed in the same arm. Dividing the electrode at a location along the tuning fork arms where strains induced during vibration reverse direction, enhances the ability to induce vibrations. A low resonant resistance and high capacity ratio are provided for an overtone frequency of flexual vibrations.
CH137180A 1979-02-20 1980-02-20 CH647384GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1885779A JPS55112017A (en) 1979-02-20 1979-02-20 Electrode of tuning fork type crystal oscillator

Publications (1)

Publication Number Publication Date
CH647384GA3 true CH647384GA3 (en) 1985-01-31

Family

ID=11983202

Family Applications (1)

Application Number Title Priority Date Filing Date
CH137180A CH647384GA3 (en) 1979-02-20 1980-02-20

Country Status (7)

Country Link
US (1) US4356425A (en)
JP (1) JPS55112017A (en)
CH (1) CH647384GA3 (en)
DE (1) DE3006040C2 (en)
FR (1) FR2449916A1 (en)
GB (1) GB2047954B (en)
HK (1) HK87785A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469979A (en) * 1983-05-27 1984-09-04 Statek Corporation Microresonator of double-ended tuning fork configuration
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
US5607236A (en) * 1987-02-27 1997-03-04 Seiko Epson Corporation Quartz oscillator temperature sensor
JPS63158405U (en) * 1987-04-04 1988-10-18
US4929860A (en) * 1988-05-17 1990-05-29 Sundstrand Data Control, Inc. Electrode configuration for vibrating beam transducers
JPH02179518A (en) * 1988-12-30 1990-07-12 Yoshinobu Kobayashi Antiskid device for tire
US5987987A (en) * 1997-04-14 1999-11-23 Denso Corporation Angular velocity sensor, related method for manufacturing the sensor, and piezoelectric vibrator element used in this sensor
US7071794B2 (en) * 2002-03-06 2006-07-04 Piedek Technical Laboratory Quartz crystal resonator, unit having resonator, oscillator having unit, electronic apparatus having oscillator, and method for manufacturing electronic apparatus
US9203135B2 (en) * 2002-04-23 2015-12-01 Piedek Technical Laboratory Method for manufacturing quartz crystal resonator
CA2630266A1 (en) * 2008-05-02 2009-11-02 Multimatic Inc. Cargo management system for pick-up trucks

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL62574C (en) * 1936-02-21
NL266211A (en) * 1960-06-21
DE2418277C3 (en) * 1973-04-16 1985-08-01 Kabushiki Kaisha Suwa Seikosha, Shinjuku, Tokio/Tokyo Quartz crystal flexural oscillator and process for its manufacture
JPS5133367U (en) * 1974-07-05 1976-03-11
JPS5323589A (en) * 1976-08-18 1978-03-04 Seiko Epson Corp Crystal vibrator
JPS54113297A (en) * 1978-01-26 1979-09-04 Seiko Epson Corp Tuning fork-type crystal vibrator
JPS54111297A (en) * 1978-02-21 1979-08-31 Seiko Instr & Electronics Ltd Compound crystal oscillator
JPS54131894A (en) * 1978-04-05 1979-10-13 Citizen Watch Co Ltd Piezoelectric oscillator
JPS558172A (en) * 1978-07-05 1980-01-21 Kinsekishiya Kenkyusho:Kk Tuning fork type piezoelectric oscillator
JPS5513551A (en) * 1978-07-14 1980-01-30 Seiko Instr & Electronics Ltd Crystal vibrator
US4320320A (en) * 1978-12-01 1982-03-16 Kabushiki Kaisha Suwa Seikosha Coupled mode tuning fork type quartz crystal vibrator

Also Published As

Publication number Publication date
FR2449916A1 (en) 1980-09-19
US4356425A (en) 1982-10-26
HK87785A (en) 1985-11-15
DE3006040C2 (en) 1986-09-25
JPS55112017A (en) 1980-08-29
JPS6251006B2 (en) 1987-10-28
DE3006040A1 (en) 1980-08-28
FR2449916B1 (en) 1984-06-15
GB2047954A (en) 1980-12-03
GB2047954B (en) 1983-04-20

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