JPS57199313A - Tuning fork type quartz oscillator - Google Patents

Tuning fork type quartz oscillator

Info

Publication number
JPS57199313A
JPS57199313A JP8403481A JP8403481A JPS57199313A JP S57199313 A JPS57199313 A JP S57199313A JP 8403481 A JP8403481 A JP 8403481A JP 8403481 A JP8403481 A JP 8403481A JP S57199313 A JPS57199313 A JP S57199313A
Authority
JP
Japan
Prior art keywords
tuning fork
base
type quartz
quartz oscillator
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
JP8403481A
Other languages
Japanese (ja)
Inventor
Hirochika Sato
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 JP8403481A priority Critical patent/JPS57199313A/en
Publication of JPS57199313A publication Critical patent/JPS57199313A/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 reduce the oscillation energy leaked from the base of a tuning fork, by constituting the asymmetrical shape for a tuning fork type quartz oscillator formed with the lithographic processing. CONSTITUTION:A step 5 is provided to a base 3 for a tuning fork type quartz oscillator 1 formed with the lithographic processing. The interval from the tip of the tuning fork 1 to the step 5 is different for the left and right as l1 for a left oscilltion arm and l2 for right oscillation arm. Through the asymmetrical shape of the oscillator, the unbalance caused at the etching margin 6 can be compensated. Thus, through a suitable value of l2-l1=DELTAl, since the displacement at the base 3 can be reduced, the oscillation energy leaked from the base 3 can be decreased.
JP8403481A 1981-06-01 1981-06-01 Tuning fork type quartz oscillator Pending JPS57199313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8403481A JPS57199313A (en) 1981-06-01 1981-06-01 Tuning fork type quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8403481A JPS57199313A (en) 1981-06-01 1981-06-01 Tuning fork type quartz oscillator

Publications (1)

Publication Number Publication Date
JPS57199313A true JPS57199313A (en) 1982-12-07

Family

ID=13819240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8403481A Pending JPS57199313A (en) 1981-06-01 1981-06-01 Tuning fork type quartz oscillator

Country Status (1)

Country Link
JP (1) JPS57199313A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449965A (en) * 1992-10-15 1995-09-12 Matsushita Electric Industrial Co., Ltd. Oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449965A (en) * 1992-10-15 1995-09-12 Matsushita Electric Industrial Co., Ltd. Oscillator

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