METHOD OF MAKING RADIATION HARDENED QUARTZ CRYSTAL OSCILLATORS
Assignee
UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE ARMY.
Filed
Jan 22, 1985
Granted
Jun 27, 1995
Location
COLTS NECK NJ US
Abstract
A method is provided of making radiation compensated quartz crystal oscillators. According to the method, at least two quartz crystal oscillators are first selected that have different responses to energetic radiation from gamma rays, neutrons, etc. Each oscillator is characterized individually as to its radiation sensitivity, the oscillators then exposed to the same radiation flux and the respective output frequency extracted from each oscillator. The frequency difference between the oscillators arising from the influence of the radiation flux is then derived. A correction signal is then derived from the frequency difference and the known radiation sensitivities. The correction signal is then applied to one of the oscillators to effect radiation compensation of its frequency.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 25, 1986
Rescinded
Mar 29, 1994
Duration
7 years, 11 months
Inventor
- 1JOHN R. VIG
Record Details
- Patent number
- US 5428315
- Application
- 06719922
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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