JPS57206118A - Tuning fork type quartz oscillator - Google Patents

Tuning fork type quartz oscillator

Info

Publication number
JPS57206118A
JPS57206118A JP9048581A JP9048581A JPS57206118A JP S57206118 A JPS57206118 A JP S57206118A JP 9048581 A JP9048581 A JP 9048581A JP 9048581 A JP9048581 A JP 9048581A JP S57206118 A JPS57206118 A JP S57206118A
Authority
JP
Japan
Prior art keywords
quartz oscillator
branch
tuning fork
fork type
type quartz
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
JP9048581A
Other languages
Japanese (ja)
Inventor
Susumu Goto
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 JP9048581A priority Critical patent/JPS57206118A/en
Publication of JPS57206118A publication Critical patent/JPS57206118A/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 improve the peak temperature of a tuning fork type quartz oscillator, by setting the proper measurement for the oscillating branch of said quartz oscillator. CONSTITUTION:The basic wave frequency f0 is set as f0=kh/l<2> and the primary harmonic frequency f1 is set as f1=Akh/l<2> respectively, where (h) is the width of the oscillating branch of a tuning fork type quartz oscillator and (l) is the length of the branch. And A 6, 6, 7 shows the oscillating branch, theta is the cut angle and (t) is the thickness of the oscillator. When the length of branch is varied with a constant width (h), the peak temperature Tp shows no considerably big change with the basic wave 10 and has a big change with the primary double harmonic wave 11. Accordingly the desired temperature TP is obtained by setting the proper (h) and (l). Thus TP=80 deg. is obtained with theta=6 deg., h=300mum, l=2,400mum and f=240kHz respectively.
JP9048581A 1981-06-12 1981-06-12 Tuning fork type quartz oscillator Pending JPS57206118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9048581A JPS57206118A (en) 1981-06-12 1981-06-12 Tuning fork type quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9048581A JPS57206118A (en) 1981-06-12 1981-06-12 Tuning fork type quartz oscillator

Publications (1)

Publication Number Publication Date
JPS57206118A true JPS57206118A (en) 1982-12-17

Family

ID=13999850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9048581A Pending JPS57206118A (en) 1981-06-12 1981-06-12 Tuning fork type quartz oscillator

Country Status (1)

Country Link
JP (1) JPS57206118A (en)

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