Vibration-induced PM Noise in Oscillators and Studies of Correlation ...
Vibration-induced PM Noise in Oscillators and Studies of Correlation ...
Vibration-induced PM Noise in Oscillators and Studies of Correlation ...
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Description <strong>of</strong> vibration equipment <strong>and</strong> <strong>PM</strong> noise measurement.<br />
Primary Measurement Effects due to Motion <strong>of</strong> an Ideal Device Under Test<br />
(DUT):<br />
Path fluctuation<br />
Uniform motion<br />
OUTLINE OF TALK<br />
Relativity under vibration<br />
Cable multipath <strong>in</strong>stability <strong>and</strong> impedance mismatch<br />
Calculation <strong>of</strong> Γ = 1/2 per g<br />
Measurements <strong>of</strong> <strong>PM</strong> noise <strong>of</strong> a low-vibe-sensitivity Qz under vibration:<br />
S<strong>in</strong>e-wave vibration, 20 – 2000 Hz<br />
R<strong>and</strong>om-noise vibration, 10 – 200 Hz<br />
Scatter plots <strong>of</strong> phase-fluctuations vs. acceleration<br />
Strategy for construct<strong>in</strong>g ultra-low noise microwave reference oscillator with<br />
reduced acceleration sensitivity.
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