JPS56158521A - Quartz oscillator - Google Patents

Quartz oscillator

Info

Publication number
JPS56158521A
JPS56158521A JP6310380A JP6310380A JPS56158521A JP S56158521 A JPS56158521 A JP S56158521A JP 6310380 A JP6310380 A JP 6310380A JP 6310380 A JP6310380 A JP 6310380A JP S56158521 A JPS56158521 A JP S56158521A
Authority
JP
Japan
Prior art keywords
secondary harmonic
fundamental wave
resonant frequency
quartz oscillator
changed
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
JP6310380A
Other languages
Japanese (ja)
Inventor
Hideo Hoshi
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 JP6310380A priority Critical patent/JPS56158521A/en
Publication of JPS56158521A publication Critical patent/JPS56158521A/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 increase the resolution of a detected temperature, by selecting the external size suitably and making the temperature characteristics of the fundamental wave and the secondary harmonic remarkably different, in a 2-mode simultaneous energizing quartz oscillator in which the fundamental wave and the secondary harmonic are energized at the same time. CONSTITUTION:The fundamental wave oscillating frequency f1, the secondary harmonic oscillating frequency f2 and the torsional mode resonant frequency are plotted in figure, when the length (l), width W are taken constant and the thickness (t) is changed out of the external size of a 2-mode simultaneous energizing DMR quartz oscillator 7, where a curve 8a shows the fundamental wave of a bending oscillation, a curve 8b shows the secondary harmonic, and the resonant frequency of the bending oscillation is not changed even with the thickness to be changed. On the other hand, curves 9a, 9b show the resonant frequency of the fundamental wave and the secondary harmonic of the torsional oscillation, and the secondary harmonic is about twice the fundamental wave. Thus, the size is suitably selected in this oscillator 7 and the temperature characteristics for the fundamental and secondary harmonic is made different remarkably, allowing to increase the resolution of the detected temperature.
JP6310380A 1980-05-13 1980-05-13 Quartz oscillator Pending JPS56158521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6310380A JPS56158521A (en) 1980-05-13 1980-05-13 Quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6310380A JPS56158521A (en) 1980-05-13 1980-05-13 Quartz oscillator

Publications (1)

Publication Number Publication Date
JPS56158521A true JPS56158521A (en) 1981-12-07

Family

ID=13219613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6310380A Pending JPS56158521A (en) 1980-05-13 1980-05-13 Quartz oscillator

Country Status (1)

Country Link
JP (1) JPS56158521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345914B1 (en) 1999-07-16 2002-02-12 Nsk Ltd. Sealed rolling bearing with centrifugal feature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345914B1 (en) 1999-07-16 2002-02-12 Nsk Ltd. Sealed rolling bearing with centrifugal feature

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