JPS5575319A - Tuning fork type oscillator - Google Patents

Tuning fork type oscillator

Info

Publication number
JPS5575319A
JPS5575319A JP15018378A JP15018378A JPS5575319A JP S5575319 A JPS5575319 A JP S5575319A JP 15018378 A JP15018378 A JP 15018378A JP 15018378 A JP15018378 A JP 15018378A JP S5575319 A JPS5575319 A JP S5575319A
Authority
JP
Japan
Prior art keywords
oscillator
tuning fork
temperature characteristics
fork type
weights
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.)
Granted
Application number
JP15018378A
Other languages
Japanese (ja)
Other versions
JPS625366B2 (en
Inventor
Shigeru Kogure
Eiji Momozaki
Minoru Inoue
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 JP15018378A priority Critical patent/JPS5575319A/en
Priority to US06/042,732 priority patent/US4320320A/en
Priority to FR7926237A priority patent/FR2443164B1/en
Priority to DE19792948331 priority patent/DE2948331A1/en
Priority to CH1066979A priority patent/CH646304GA3/fr
Priority to GB7941622A priority patent/GB2042799B/en
Publication of JPS5575319A publication Critical patent/JPS5575319A/en
Priority to HK87685A priority patent/HK87685A/en
Publication of JPS625366B2 publication Critical patent/JPS625366B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To secure an easy correction for both the oscillation frequency and the temperature characteristics for the tuning fork type oscillator using the combination of two different modes by providing the weights at several areas of the oscillator. CONSTITUTION:The silver is evaporated to combined tuning fork type crystal oscillator 5 with installation of weights 8 and 9. Oscillator 5 features resonance frequency Fof and Tof due to the flection and twist modes respectively. The temperature characteristics of Fof is deteriorated in case some error is caused to the cut angle and the external measurements of the crystal at the time of mass production. In this connection weight 9 is provided at the fork position of the tuning fork. The fork part touches the node of the resonance, no effect is given to the oscillation displacement to ensure betterment of the temperature characteristics. This, however, causes inevitably some change of the resonance frequency. And to correct this change, weight 8 is provided at the tip part of the oscillator.
JP15018378A 1978-12-01 1978-12-04 Tuning fork type oscillator Granted JPS5575319A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP15018378A JPS5575319A (en) 1978-12-04 1978-12-04 Tuning fork type oscillator
US06/042,732 US4320320A (en) 1978-12-01 1979-05-29 Coupled mode tuning fork type quartz crystal vibrator
FR7926237A FR2443164B1 (en) 1978-12-01 1979-10-23 DIAPASON TYPE QUARTZ RESONATOR
DE19792948331 DE2948331A1 (en) 1978-12-01 1979-11-30 TUNING FORK SWINGER AND METHOD FOR ADJUSTING THE FREQUENCY OF A TUNING FORK SWINGER
CH1066979A CH646304GA3 (en) 1978-12-01 1979-11-30
GB7941622A GB2042799B (en) 1978-12-04 1979-12-03 Tuning fork type piezo-electric vibrator
HK87685A HK87685A (en) 1978-12-04 1985-11-07 Tuning fork type piezo-electric vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15018378A JPS5575319A (en) 1978-12-04 1978-12-04 Tuning fork type oscillator

Publications (2)

Publication Number Publication Date
JPS5575319A true JPS5575319A (en) 1980-06-06
JPS625366B2 JPS625366B2 (en) 1987-02-04

Family

ID=15491315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15018378A Granted JPS5575319A (en) 1978-12-01 1978-12-04 Tuning fork type oscillator

Country Status (1)

Country Link
JP (1) JPS5575319A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757107A (en) * 1994-11-01 1998-05-26 Fujitsu Limited Tuning-fork vibratory gyro and sensor system using the same
US5861705A (en) * 1994-11-01 1999-01-19 Fujitsu Limited Tuning-fork vibratory gyro and sensor system using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006191466A (en) * 2005-01-07 2006-07-20 Seiko Instruments Inc Piezoelectric vibrator, oscillator and electronic apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757107A (en) * 1994-11-01 1998-05-26 Fujitsu Limited Tuning-fork vibratory gyro and sensor system using the same
US5861705A (en) * 1994-11-01 1999-01-19 Fujitsu Limited Tuning-fork vibratory gyro and sensor system using the same

Also Published As

Publication number Publication date
JPS625366B2 (en) 1987-02-04

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