CH636995GA3 - - Google Patents

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Publication number
CH636995GA3
CH636995GA3 CH863080A CH863080A CH636995GA3 CH 636995G A3 CH636995G A3 CH 636995GA3 CH 863080 A CH863080 A CH 863080A CH 863080 A CH863080 A CH 863080A CH 636995G A3 CH636995G A3 CH 636995GA3
Authority
CH
Switzerland
Prior art keywords
vibration arms
input terminal
vibration
excitation electrodes
shaped quartz
Prior art date
Application number
CH863080A
Other languages
German (de)
Other versions
CH636995B (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 CH636995B publication Critical patent/CH636995B/en
Application filed filed Critical
Publication of CH636995GA3 publication Critical patent/CH636995GA3/de

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

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)

Abstract

A tuning fork-shaped quartz oscillator comprises a U-shaped quartz oscillator body which comprises of a pair of vibration arms having a rectangular cross section and a base connecting the vibration arms at one end. Four excitation electrodes are provided respectively on the four sides of each vibration arm, each electrode having a portion laid on two adjacent sides. The oscillator further comprises connecting means including a first input terminal and a second input terminal which supply drive voltage to the excitation electrodes so that the vibration arms keep vibrating in opposite phase relation in both a bending mode and a twisting mode.
CH863080A 1979-11-22 1980-11-21 TUNING FORK-SHAPED QUARTZ OSCILLATOR. CH636995B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979162163U JPS6316169Y2 (en) 1979-11-22 1979-11-22

Publications (2)

Publication Number Publication Date
CH636995B CH636995B (en)
CH636995GA3 true CH636995GA3 (en) 1983-07-15

Family

ID=15749219

Family Applications (1)

Application Number Title Priority Date Filing Date
CH863080A CH636995B (en) 1979-11-22 1980-11-21 TUNING FORK-SHAPED QUARTZ OSCILLATOR.

Country Status (4)

Country Link
US (1) US4382204A (en)
JP (1) JPS6316169Y2 (en)
CH (1) CH636995B (en)
GB (1) GB2065965B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56136015A (en) * 1980-03-26 1981-10-23 Seiko Instr & Electronics Ltd Electrode structure of tuning fork type quartz oscillator
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
US4678905A (en) * 1984-05-18 1987-07-07 Luxtron Corporation Optical sensors for detecting physical parameters utilizing vibrating piezoelectric elements
US4897541A (en) * 1984-05-18 1990-01-30 Luxtron Corporation Sensors for detecting electromagnetic parameters utilizing resonating elements
US4742260A (en) * 1986-02-06 1988-05-03 Hiroshi Shimizu Piezoelectrically driving device
US5170089A (en) * 1989-12-20 1992-12-08 General Electric Company Two-axis motion apparatus utilizing piezoelectric material
JP4050343B2 (en) * 1996-04-02 2008-02-20 富士通株式会社 Tuning fork vibration gyro

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885562C (en) * 1943-11-10 1953-08-06 Siemens Ag Arrangement for the generation of sound frequencies using a piezoelectric crystal which executes bending vibrations
JPS5133367U (en) * 1974-07-05 1976-03-11
JPS532097A (en) * 1976-06-29 1978-01-10 Seiko Instr & Electronics Ltd Quartz crystal oscillator
GB2006520B (en) * 1977-09-07 1982-06-30 Suwa Seikosha Kk Piezoelectric resonator
JPS54118292A (en) * 1978-03-06 1979-09-13 Fuji Electric Co Ltd Measureing method of biological nitrification rate

Also Published As

Publication number Publication date
GB2065965A (en) 1981-07-01
US4382204A (en) 1983-05-03
JPS6316169Y2 (en) 1988-05-09
CH636995B (en)
JPS5679024U (en) 1981-06-26
GB2065965B (en) 1983-10-05

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Legal Events

Date Code Title Description
PL Patent ceased