JPS55158719A - Processing device for piezoelectric oscillator - Google Patents

Processing device for piezoelectric oscillator

Info

Publication number
JPS55158719A
JPS55158719A JP6637779A JP6637779A JPS55158719A JP S55158719 A JPS55158719 A JP S55158719A JP 6637779 A JP6637779 A JP 6637779A JP 6637779 A JP6637779 A JP 6637779A JP S55158719 A JPS55158719 A JP S55158719A
Authority
JP
Japan
Prior art keywords
circuit
oscillator
voltage
processing
output
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
JP6637779A
Other languages
Japanese (ja)
Inventor
Toshio Omori
Hiroshi Yanagawa
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP6637779A priority Critical patent/JPS55158719A/en
Publication of JPS55158719A publication Critical patent/JPS55158719A/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

Abstract

PURPOSE:To secure the measurement of the oscillation frequency under the processing cource, by increasing the gain of the oscillating circuit in accordance with the increment of the impedance of the oscillator so as not to cause the attenuation for the vibrating amplitude of the crystal oscillator althrough the processing external force may be applied when the frequency is controlled. CONSTITUTION:The current flowing to crystal oscillator 1 is converted into the voltage through current-voltage converting circuit 2, and this converted voltage is applied to control voltage producing circuit 6 to be compared with the voltage of reference voltage source 7 and then to be delivered in the form of the control signal of automatic gain control circuit 3. At the same time, the output voltage supplied from circuit 2 is supplied to control circuit 3, and the output of circuit 3 and controlled by the control signal of circuit 6 is applied to phase control circuit 4. The output of circuit 4 is amplified by output amplifier 5 and then applied to oscillator 1. Thus the current flowing to oscillator 1 is made constant to hold the vibrating energy of oscillator 1 at the constant level. In this way, the mearuement of the oscillation frequency made possible for oscillator 1 even under the processing cource, thus reducing the processing time as well as increasing the processing accuracy.
JP6637779A 1979-05-29 1979-05-29 Processing device for piezoelectric oscillator Pending JPS55158719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6637779A JPS55158719A (en) 1979-05-29 1979-05-29 Processing device for piezoelectric oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6637779A JPS55158719A (en) 1979-05-29 1979-05-29 Processing device for piezoelectric oscillator

Publications (1)

Publication Number Publication Date
JPS55158719A true JPS55158719A (en) 1980-12-10

Family

ID=13314067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6637779A Pending JPS55158719A (en) 1979-05-29 1979-05-29 Processing device for piezoelectric oscillator

Country Status (1)

Country Link
JP (1) JPS55158719A (en)

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