Abstract
Quartz crystal oscillators are often used as the reference frequency sources, but they are very sensitive to accelerations. This paper discussed how accelerations affect oscillators’ frequency stability. The frequency shifts caused by gravity was shown through 2g-tipover experiment. Then a vibration experiment system was built up, which consist of the vibrating platform, the controlling part, the measuring part and the oscillator. We studied the relationship between accelerations and oscillator’s frequency shifts by imposing sinusoidal and random vibrations onto the oscillator and observing the phase noise degradation via signal source analyzer. The paper also brought up the measuring method of the acceleration sensitivity vector.
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