JPS5573120A - Tuning fork type oscillating element - Google Patents

Tuning fork type oscillating element

Info

Publication number
JPS5573120A
JPS5573120A JP14621278A JP14621278A JPS5573120A JP S5573120 A JPS5573120 A JP S5573120A JP 14621278 A JP14621278 A JP 14621278A JP 14621278 A JP14621278 A JP 14621278A JP S5573120 A JPS5573120 A JP S5573120A
Authority
JP
Japan
Prior art keywords
oscillation
oscillator
crystal
resonance
frequency
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
JP14621278A
Other languages
Japanese (ja)
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 JP14621278A priority Critical patent/JPS5573120A/en
Priority to GB7940787A priority patent/GB2041640A/en
Priority to DE19792947721 priority patent/DE2947721A1/en
Publication of JPS5573120A publication Critical patent/JPS5573120A/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 elements; 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)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE: To obatin a crystal oscillator free from the jump of the oscillation frequency and with a low resonance frequency and the improved resonance frequency temperature properties by combining the secondaty oscillation featuring more than 10-fold resonance resistance to the resonance resistance of the main oscillation.
CONSTITUTION: The electric, mechanical and optical axes of the crystal ore are referred to as X, Y and Z respectively. And the crystal plate is cut out with the plate face of XY' face obtained by giving the θ-turn to the crystal plate featuring the plate face of the XY face round the X axis, and then the turning fork crystal oscillator is cut out so that the trning fork arm may feature angle ϕ=±20 or less to the direction of the X axis. Thus for the crystal oscillator, the resonance resistance of the secondary flection oscillation becomes more than 10 times as high as the resonance resistance of the main twist oscillation. If the thickness of the tuning fork arm is selected so that the main oscillation may be combined to the secondary oscillation, the resonance frequency becomes low along with the frequency temperature properties of 0∼40°C. Thus about 1/10 change is secured for the resonance frequency deviation of the conventional oscillator. As a result, an oscillator can be obtained with prevention of the oscillation stop due to the temperature change plus the oscillation frequency jump. And with application of such oscillator to the electronic watch or the like, the power consumption can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP14621278A 1978-11-27 1978-11-27 Tuning fork type oscillating element Pending JPS5573120A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14621278A JPS5573120A (en) 1978-11-27 1978-11-27 Tuning fork type oscillating element
GB7940787A GB2041640A (en) 1978-11-27 1979-11-26 Tuning-fork type piezo-electric vibrator
DE19792947721 DE2947721A1 (en) 1978-11-27 1979-11-27 Piezoelectric tuning fork resonator - combines low current consumption with HF stability by using exciting electrodes on fork arms producing both torsion and bending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14621278A JPS5573120A (en) 1978-11-27 1978-11-27 Tuning fork type oscillating element

Publications (1)

Publication Number Publication Date
JPS5573120A true JPS5573120A (en) 1980-06-02

Family

ID=15402641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14621278A Pending JPS5573120A (en) 1978-11-27 1978-11-27 Tuning fork type oscillating element

Country Status (2)

Country Link
JP (1) JPS5573120A (en)
GB (1) GB2041640A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH650897GA3 (en) * 1982-07-14 1985-08-30

Also Published As

Publication number Publication date
GB2041640A (en) 1980-09-10

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