JPS5492091A - Tuning fork type crystal oscillator - Google Patents

Tuning fork type crystal oscillator

Info

Publication number
JPS5492091A
JPS5492091A JP7078A JP7078A JPS5492091A JP S5492091 A JPS5492091 A JP S5492091A JP 7078 A JP7078 A JP 7078A JP 7078 A JP7078 A JP 7078A JP S5492091 A JPS5492091 A JP S5492091A
Authority
JP
Japan
Prior art keywords
tuning fork
crystal oscillator
type crystal
fork type
oscillation
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
JP7078A
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 JP7078A priority Critical patent/JPS5492091A/en
Publication of JPS5492091A publication Critical patent/JPS5492091A/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)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To prevent the oscillation of the 1st and 2nd higher harmonics regardless of the constitution of the oscillator circuit by providing the concavity at the prescribed area of the oscillator itself. CONSTITUTION:An oblong concavity 7 is provided in the range of 0.65-0.85 and in the range of 0.85-0.95 each with the tip dof the tuning fork bar is set to 1 when the base part of the bar is set as the original point. As a result, the oscillation can be suppressed for the 1st and 2nd higher harmonics.
JP7078A 1977-12-28 1977-12-28 Tuning fork type crystal oscillator Pending JPS5492091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7078A JPS5492091A (en) 1977-12-28 1977-12-28 Tuning fork type crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7078A JPS5492091A (en) 1977-12-28 1977-12-28 Tuning fork type crystal oscillator

Publications (1)

Publication Number Publication Date
JPS5492091A true JPS5492091A (en) 1979-07-20

Family

ID=11463912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7078A Pending JPS5492091A (en) 1977-12-28 1977-12-28 Tuning fork type crystal oscillator

Country Status (1)

Country Link
JP (1) JPS5492091A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008054273A (en) * 2006-03-13 2008-03-06 Daishinku Corp Piezoelectric vibration chip, frequency adjusting method thereof, and piezoelectric vibrator
US7915793B2 (en) * 2006-02-06 2011-03-29 Hitachi, Ltd. Thin film tuning-fork type inflection resonator and electric signal processing element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7915793B2 (en) * 2006-02-06 2011-03-29 Hitachi, Ltd. Thin film tuning-fork type inflection resonator and electric signal processing element
US8102102B2 (en) 2006-02-06 2012-01-24 Hitachi, Ltd. Thin film tuning-fork type inflection resonator and electric signal processing element
JP2008054273A (en) * 2006-03-13 2008-03-06 Daishinku Corp Piezoelectric vibration chip, frequency adjusting method thereof, and piezoelectric vibrator
JP4687993B2 (en) * 2006-03-13 2011-05-25 株式会社大真空 Piezoelectric vibrating piece, piezoelectric vibrator, and frequency adjusting method of piezoelectric vibrating piece

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