JPS57116408A - Tuning-fork type quartz oscillator - Google Patents

Tuning-fork type quartz oscillator

Info

Publication number
JPS57116408A
JPS57116408A JP348981A JP348981A JPS57116408A JP S57116408 A JPS57116408 A JP S57116408A JP 348981 A JP348981 A JP 348981A JP 348981 A JP348981 A JP 348981A JP S57116408 A JPS57116408 A JP S57116408A
Authority
JP
Japan
Prior art keywords
thin film
tuning
fork type
type quartz
deformation
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP348981A
Other languages
Japanese (ja)
Inventor
Makoto Wakasugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP348981A priority Critical patent/JPS57116408A/en
Publication of JPS57116408A publication Critical patent/JPS57116408A/en
Pending legal-status Critical Current

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
    • H03H9/15—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

PURPOSE:To obtain a high-precision oscillator which has a less frequency shift by providing a zinc oxide piezoelectric thin film at one end of the base part of a tuning-fork type quartz piece and by fixing a metallic thin film on said thin film. CONSTITUTION:On the main surface 2 and side surfaces 3 and 4 of a tuning- fork type quartz piece 1, energizing electrodes 9 are provided at two parts of each side of a lengthwise axis of symmetry with equal area, and at one end of its base part, a zinc oxide piezoelectric thin film 11 is formed. On the thin film 11, a metallic thin film 12 is so fixed that when the thin film 11 deforms finely, the amount of generated charge extracted in accordance with the shape and extent of the deformation is different. Consequently, the generation of deformation in oscillation is reduced, and the Q value is never decreased. Further, a secular change in frequency is not increased.
JP348981A 1981-01-13 1981-01-13 Tuning-fork type quartz oscillator Pending JPS57116408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP348981A JPS57116408A (en) 1981-01-13 1981-01-13 Tuning-fork type quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP348981A JPS57116408A (en) 1981-01-13 1981-01-13 Tuning-fork type quartz oscillator

Publications (1)

Publication Number Publication Date
JPS57116408A true JPS57116408A (en) 1982-07-20

Family

ID=11558744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP348981A Pending JPS57116408A (en) 1981-01-13 1981-01-13 Tuning-fork type quartz oscillator

Country Status (1)

Country Link
JP (1) JPS57116408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8258676B2 (en) 2004-06-21 2012-09-04 Citizen Holdings Co., Ltd. Crystal device and method for manufacturing crystal device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8258676B2 (en) 2004-06-21 2012-09-04 Citizen Holdings Co., Ltd. Crystal device and method for manufacturing crystal device

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