JPS5687911A - Bending torsional quartz oscillator - Google Patents

Bending torsional quartz oscillator

Info

Publication number
JPS5687911A
JPS5687911A JP16526979A JP16526979A JPS5687911A JP S5687911 A JPS5687911 A JP S5687911A JP 16526979 A JP16526979 A JP 16526979A JP 16526979 A JP16526979 A JP 16526979A JP S5687911 A JPS5687911 A JP S5687911A
Authority
JP
Japan
Prior art keywords
oscillation
oscillator
quartz oscillator
beta
taken
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
JP16526979A
Other languages
Japanese (ja)
Inventor
Hirofumi Kawashima
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 JP16526979A priority Critical patent/JPS5687911A/en
Publication of JPS5687911A publication Critical patent/JPS5687911A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/364—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device the amplifier comprising field effect transistors

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To obtain the bending torsional quartz oscillator with stable oscillation, by selecting the crystal impedance of the main- and suboscillation to an optimum value, through the change in the size of oscillator. CONSTITUTION:Taking the phase difference of the amplifier A and feedback B as respectively LA and LB, the amplification factor and feedback ratio as respectively alpha and beta, and the amplification factor alpha and the phase difference LA as constant, the oscillating conditions can be determined with the feedback ratio beta and LB. The beta and LB are changed with the crystal impedance CI of the quartz oscillator. Further, to keep stable oscillation at the main oscillation at the temperature change of -10C-+60 deg.C, RS/RM must be taken greater than 5, where the CI of the main oscillation and suboscillation are respectively RM and RS, and if this ratio is too greater, then the frequency difference between the bending mode and the torsional mode oscillation must be taken smaller, thus <=30 RS/RM is taken. Thus, by selecting RS/RM to an optimum value, the oscillator which offers stable oscillation can be formed.
JP16526979A 1979-12-19 1979-12-19 Bending torsional quartz oscillator Pending JPS5687911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16526979A JPS5687911A (en) 1979-12-19 1979-12-19 Bending torsional quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16526979A JPS5687911A (en) 1979-12-19 1979-12-19 Bending torsional quartz oscillator

Publications (1)

Publication Number Publication Date
JPS5687911A true JPS5687911A (en) 1981-07-17

Family

ID=15809115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16526979A Pending JPS5687911A (en) 1979-12-19 1979-12-19 Bending torsional quartz oscillator

Country Status (1)

Country Link
JP (1) JPS5687911A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619089A (en) * 1994-10-31 1997-04-08 Seiko Instruments Inc. Ultrasonic motor and electronic apparatus provided with an ultrasonic motor
US6707347B2 (en) * 2001-01-26 2004-03-16 Nihon Dempa Kogyo, Co., Ltd. Crystal oscillator that utilizes the power transistor of an output amplifier to heat the crystal resonator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619089A (en) * 1994-10-31 1997-04-08 Seiko Instruments Inc. Ultrasonic motor and electronic apparatus provided with an ultrasonic motor
US6707347B2 (en) * 2001-01-26 2004-03-16 Nihon Dempa Kogyo, Co., Ltd. Crystal oscillator that utilizes the power transistor of an output amplifier to heat the crystal resonator

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