Atomic clock

Details Atomic clock Atomic clock

1989-03-02

1990-07-24

Miska, Vit W.

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

368200, 331 3, G04C 1500, H03L 726

Patent

active

049439553

ABSTRACT:
An atomic clock of the type comprising a quartz oscillator, a tube contaig a material, the atoms of which have an hyperfine spectral transition, control means capable of generating, from the quartz oscillator, a control signal of a frequency that corresponds to the hyperfine spectral transition, and of applying this control signal to the tube to cause interaction between this signal and the atoms of the material contained in the tube, and feedback means that are sensitive to the response of the tube and are adapted to modifying the frequency of the quartz oscillator so as to substantially center the frequency of the control signal on the frequency of the hyperfine spectral transition, wherein the control means are adapted to cyclically generate test signals, the controlled frequency of which is located outside the Ramsey peak.

REFERENCES:
patent: 4146848 (1979-03-01), Hellwig et al.
patent: 4158286 (1979-06-01), Reinberg
patent: 4331933 (1982-05-01), Allan et al.
patent: 4425653 (1984-01-01), Cutler
patent: 4692916 (1987-09-01), De Marchi et al.

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