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JPS5456786A - Tunig fork type crystal oscillator unit - Google Patents

Tunig fork type crystal oscillator unit

Info

Publication number
JPS5456786A
JPS5456786A JP12312077A JP12312077A JPS5456786A JP S5456786 A JPS5456786 A JP S5456786A JP 12312077 A JP12312077 A JP 12312077A JP 12312077 A JP12312077 A JP 12312077A JP S5456786 A JPS5456786 A JP S5456786A
Authority
JP
Japan
Prior art keywords
tunig
support part
crystal oscillator
type crystal
fork type
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
JP12312077A
Other languages
Japanese (ja)
Inventor
Hironori Shimazu
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP12312077A priority Critical patent/JPS5456786A/en
Publication of JPS5456786A publication Critical patent/JPS5456786A/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

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 excellent characteristics as well as a highly stable oscillation unit without receiving any effect from the support part, by setting the length covering from the root part to the support part of a tuning fork to the value of more than specified multiplication of the width of a fork. CONSTITUTION:Length Lb from the root part to the support part of a tuning fork is set more than 3 times as much as width d of one tuning fork, that is, Lb/d>3 is satisfied. As a result, the displacement of the oscillator can be ignored at the support part, thus ensuring the supporting with no impairment of the oscillation mode.
JP12312077A 1977-10-14 1977-10-14 Tunig fork type crystal oscillator unit Pending JPS5456786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12312077A JPS5456786A (en) 1977-10-14 1977-10-14 Tunig fork type crystal oscillator unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12312077A JPS5456786A (en) 1977-10-14 1977-10-14 Tunig fork type crystal oscillator unit

Publications (1)

Publication Number Publication Date
JPS5456786A true JPS5456786A (en) 1979-05-08

Family

ID=14852671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12312077A Pending JPS5456786A (en) 1977-10-14 1977-10-14 Tunig fork type crystal oscillator unit

Country Status (1)

Country Link
JP (1) JPS5456786A (en)

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