JPS54160151A - Tuning fork type crystal oscillator - Google Patents

Tuning fork type crystal oscillator

Info

Publication number
JPS54160151A
JPS54160151A JP6951278A JP6951278A JPS54160151A JP S54160151 A JPS54160151 A JP S54160151A JP 6951278 A JP6951278 A JP 6951278A JP 6951278 A JP6951278 A JP 6951278A JP S54160151 A JPS54160151 A JP S54160151A
Authority
JP
Japan
Prior art keywords
oscillator
tuning fork
type crystal
fork type
projection part
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
JP6951278A
Other languages
Japanese (ja)
Inventor
Akihito Kudo
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 JP6951278A priority Critical patent/JPS54160151A/en
Publication of JPS54160151A publication Critical patent/JPS54160151A/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 keep the high reliability for a long time as well as to realize the frequency run-on for the tuning fork type crystal oscillator by providing the projection part which is formed by etching on the side surface along the longer-side direction of the oscillator and in the same direction as the vibration direction on both the right and left side surfaces of the oscillator. CONSTITUTION:Projection part 2 is formed by etching on the side surface along the longer-side direction of oscillator 1 and in the same direction as the vibration direction, and this projection is provided also on both the right and left side surfaces of oscillator 1. As a result, the faces to which the electric components have contact are increased, and thus the conduction is more assured for both electrodes on both surfaces to secure a big effect as the exciting side-surface electrode by applying evaporation or sputtering from both surfaces. At the same time, the frequency run- on becomes possible to some extent by controlling size d of projection part 2.
JP6951278A 1978-06-09 1978-06-09 Tuning fork type crystal oscillator Pending JPS54160151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6951278A JPS54160151A (en) 1978-06-09 1978-06-09 Tuning fork type crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6951278A JPS54160151A (en) 1978-06-09 1978-06-09 Tuning fork type crystal oscillator

Publications (1)

Publication Number Publication Date
JPS54160151A true JPS54160151A (en) 1979-12-18

Family

ID=13404853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6951278A Pending JPS54160151A (en) 1978-06-09 1978-06-09 Tuning fork type crystal oscillator

Country Status (1)

Country Link
JP (1) JPS54160151A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03150913A (en) * 1989-11-07 1991-06-27 Seiko Electronic Components Ltd Crystal vibrator
CN104052427A (en) * 2013-03-11 2014-09-17 精工电子水晶科技股份有限公司 Piezoelectric Vibrating Piece, Piezoelectric Vibrator, Oscillator, Electronic Apparatus And Radio Controlled Timepiece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03150913A (en) * 1989-11-07 1991-06-27 Seiko Electronic Components Ltd Crystal vibrator
CN104052427A (en) * 2013-03-11 2014-09-17 精工电子水晶科技股份有限公司 Piezoelectric Vibrating Piece, Piezoelectric Vibrator, Oscillator, Electronic Apparatus And Radio Controlled Timepiece
JP2014175953A (en) * 2013-03-11 2014-09-22 Sii Crystal Technology Inc Piezoelectric vibration piece, piezoelectric vibrator, oscillator, electronic equipment and electric wave clock
CN104052427B (en) * 2013-03-11 2018-01-12 精工电子水晶科技股份有限公司 Piezoelectric vibration piece, piezoelectric vibrator, oscillator, electronic equipment and radio controlled timepiece

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