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An experiment to detect gravity at sub-mm scale with high-Q mechanical oscillators

L. Haiberger·M. Weingran·H. Wenz·S. Schiller
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Abstract

Silicon double paddle oscillators are well suited for the detection of weak forces because of their high Q factor (about 10^5 at room temperature). We describe an experiment aimed at the detection of gravitational forces between masses at sub-mm distance using such an oscillator. Gravitational excitation is produced by a rotating aluminium disk with platinum segments. The force sensitivity of this apparatus is about 10 fN at room temperature for 1000 s averaging time at room temperature. The current limitations to detection of the gravitational force are mentioned.

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L. Haiberger, M. Weingran, H. Wenz, S. Schiller. 2005-10-20. An experiment to detect gravity at sub-mm scale with high-Q mechanical oscillators. https://doi.org/10.1142/9789812704030_0056

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