GB1108189A - Apparatus for adjusting the frequency and temperature coefficient of a mechanical vibrator device - Google Patents

Apparatus for adjusting the frequency and temperature coefficient of a mechanical vibrator device

Info

Publication number
GB1108189A
GB1108189A GB4220666A GB4220666A GB1108189A GB 1108189 A GB1108189 A GB 1108189A GB 4220666 A GB4220666 A GB 4220666A GB 4220666 A GB4220666 A GB 4220666A GB 1108189 A GB1108189 A GB 1108189A
Authority
GB
United Kingdom
Prior art keywords
frequency
vibrator device
adjusting
temperature coefficient
sept
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.)
Expired
Application number
GB4220666A
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
Publication of GB1108189A publication Critical patent/GB1108189A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/107—Controlling frequency or amplitude of the oscillating system
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

1,108,189. Transistor oscillator circuits. DAINI SEIKOSHA KABUSHIKI KAISHA. 21 Sept., 1966 [28 Sept., 1965], No. 42206/66. Heading H3T. [Also in Divisions G3 and H2] A vibrator device used as a frequency standard comprises two adjustable magnetic members 9, 10 mounted adjacent the vibratory member 3 with their magnetic axes in the direction of vibration of member 3. The magnetic members form the cores of coils 5, 6 respectively which are connected in a transistor oscillator circuit. Core 9 is a permanent magnet and its position relative to member 3 is adjusted until the temperature coefficient of the vibrator device is negligibly small. The normal running frequency is then determined by the shape of member 3 and this frequency can be altered within small limits by adjusting the position of soft-iron core 10 relative to member 3 or by altering the oscillator frequency by means of variable resistor VR. The fixed parts of the device may be mounted on a printed circuit board 4.
GB4220666A 1965-09-28 1966-09-21 Apparatus for adjusting the frequency and temperature coefficient of a mechanical vibrator device Expired GB1108189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5888665 1965-09-28

Publications (1)

Publication Number Publication Date
GB1108189A true GB1108189A (en) 1968-04-03

Family

ID=13097243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4220666A Expired GB1108189A (en) 1965-09-28 1966-09-21 Apparatus for adjusting the frequency and temperature coefficient of a mechanical vibrator device

Country Status (3)

Country Link
CH (2) CH484465A (en)
DE (1) DE1497845A1 (en)
GB (1) GB1108189A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536940A (en) * 1968-12-17 1970-10-27 United Aircraft Corp Free-free beam vibrator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536940A (en) * 1968-12-17 1970-10-27 United Aircraft Corp Free-free beam vibrator

Also Published As

Publication number Publication date
DE1497845A1 (en) 1969-08-07
CH1389866A4 (en) 1969-09-15
CH484465A (en) 1969-09-15

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