Method of minimizing the aging and radiation induced frequency s

Details Method of minimizing the aging and radiation induced frequency s Method of minimizing the aging and radiation induced frequency s

1985-08-12

1996-04-30

Hellner, Mark

Oscillators

Electromechanical resonator

Crystal

331160, H03B 532

Patent

active

055128637

ABSTRACT:
The aging and radiation induced frequency shifts of quartz crystal oscillrs are minimized by using oscillator circuits in which the DC voltage applied to the quartz crystal is about zero. This results in reduced movement of impurity ions which generally cause such shifts.

REFERENCES:
patent: 1763515 (1930-06-01), Hahnemann
patent: 1919993 (1933-07-01), Tripp
patent: 3596206 (1971-07-01), Loria
patent: 3875533 (1975-04-01), Irwin et al.
patent: 4560956 (1985-12-01), Duncan
patent: 4591807 (1986-05-01), Davis

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