JPS56152314A - Combined tuning fork quartz oscillator - Google Patents

Combined tuning fork quartz oscillator

Info

Publication number
JPS56152314A
JPS56152314A JP5481180A JP5481180A JPS56152314A JP S56152314 A JPS56152314 A JP S56152314A JP 5481180 A JP5481180 A JP 5481180A JP 5481180 A JP5481180 A JP 5481180A JP S56152314 A JPS56152314 A JP S56152314A
Authority
JP
Japan
Prior art keywords
tuning fork
quartz oscillator
combined
fork quartz
combined tuning
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
JP5481180A
Other languages
Japanese (ja)
Inventor
Shigeru Kogure
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP5481180A priority Critical patent/JPS56152314A/en
Priority to GB8111856A priority patent/GB2075254B/en
Priority to US06/257,296 priority patent/US4410827A/en
Priority to CH270681A priority patent/CH654975GA3/fr
Publication of JPS56152314A publication Critical patent/JPS56152314A/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 stabilize and improve the Q value and stabilize the oscillation amplitude and the oscillation frequency, by supporting the base part of the combined tuning fork quartz oscillator by a folded supporting wire. CONSTITUTION:The combined tuning fork quartz oscillator where the linear projecting part of a width smaller than the half of the width of the tuning fork arm is provided in the base part, the combined tuning fork quartz oscillator where the taper-shaped projecting part of width smaller than the 2/3 of the width of the tuning fork arm is provided in the base part, or the combined tuning fork quartz oscillator where the inside corner at the tip of the tuning fork is cut off by <=1/5 of the length of the tuning fork arm is suported by the supporting wire having one folded part. As a result, oscillation leakage is prevented, and it is difficult that the quartz oscillator is affected by impulse such as drop. In case of the combined tuning fork quartz oscillator of approximately 200kHz resonance frequency, the Q value becomes >=300,000, and the CI value becomes <=2kOMEGA, and aging of the frequency is reduced.
JP5481180A 1980-04-24 1980-04-24 Combined tuning fork quartz oscillator Pending JPS56152314A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5481180A JPS56152314A (en) 1980-04-24 1980-04-24 Combined tuning fork quartz oscillator
GB8111856A GB2075254B (en) 1980-04-24 1981-04-14 Mode coupled tuning fork type piezoelectric resonator
US06/257,296 US4410827A (en) 1980-04-24 1981-04-24 Mode coupled notched tuning fork type quartz crystal resonator
CH270681A CH654975GA3 (en) 1980-04-24 1981-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5481180A JPS56152314A (en) 1980-04-24 1980-04-24 Combined tuning fork quartz oscillator

Publications (1)

Publication Number Publication Date
JPS56152314A true JPS56152314A (en) 1981-11-25

Family

ID=12981090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5481180A Pending JPS56152314A (en) 1980-04-24 1980-04-24 Combined tuning fork quartz oscillator

Country Status (1)

Country Link
JP (1) JPS56152314A (en)

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