Ten same-batch ferrite cores show highly consistent noise floors when swapped into the same resonant capacitance bridge, with a weighted-mean variance below 0.3% at 293 K and below 0.6% at 140 K.
Capacitive sensing of test mass motion with nanometer precision over millimeter-wide sensing gaps for space-borne gravitational reference sensors
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Performance Variance of Low Noise Resonant Capacitance Bridges While Replacing their Ungapped MnZn Ferrite Cores
Ten same-batch ferrite cores show highly consistent noise floors when swapped into the same resonant capacitance bridge, with a weighted-mean variance below 0.3% at 293 K and below 0.6% at 140 K.