JPS5575320A - Frequency control method for tuning fork type oscillator - Google Patents

Frequency control method for tuning fork type oscillator

Info

Publication number
JPS5575320A
JPS5575320A JP15018678A JP15018678A JPS5575320A JP S5575320 A JPS5575320 A JP S5575320A JP 15018678 A JP15018678 A JP 15018678A JP 15018678 A JP15018678 A JP 15018678A JP S5575320 A JPS5575320 A JP S5575320A
Authority
JP
Japan
Prior art keywords
control
weight
tuning fork
frequency
fork type
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
JP15018678A
Other languages
Japanese (ja)
Inventor
Minoru Inoue
Eiji Momozaki
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 JP15018678A priority Critical patent/JPS5575320A/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 JPS5575320A publication Critical patent/JPS5575320A/en
Priority to HK87685A priority patent/HK87685A/en
Pending 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 the resonance characteristics by increasing or decreasing the mass of the weight provided to the oscillator. CONSTITUTION:Weights 13 and 14 are provided to the tuning fork type crystal oscillator using the combination of two different modes in order to secure variation for the resonance frequency. Weight 13 at the tip of the oscillator functions to control the frequency for the flection 1st higher harmonic. And after the control there, the control is given to weight 14 at the node part while the measurement is being given to the basic wave resonance frequency of the flection oscillation. The node part of the oscillation makes the control effective only to the mode of one side. The weight receives the additional mass with evaporation of silver through the sputtering. Also the frequency control is possible by removing the weights added extra previously via the laser.
JP15018678A 1978-12-01 1978-12-04 Frequency control method for tuning fork type oscillator Pending JPS5575320A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP15018678A JPS5575320A (en) 1978-12-04 1978-12-04 Frequency control method for 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
JP15018678A JPS5575320A (en) 1978-12-04 1978-12-04 Frequency control method for tuning fork type oscillator

Publications (1)

Publication Number Publication Date
JPS5575320A true JPS5575320A (en) 1980-06-06

Family

ID=15491384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15018678A Pending JPS5575320A (en) 1978-12-01 1978-12-04 Frequency control method for tuning fork type oscillator

Country Status (1)

Country Link
JP (1) JPS5575320A (en)

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