12.07.2015 Views

GG (Galileo Galilei) Test of the Equivalence Principle to 10-17

GG (Galileo Galilei) Test of the Equivalence Principle to 10-17

GG (Galileo Galilei) Test of the Equivalence Principle to 10-17

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Measurement <strong>of</strong> electric patch effects (II)FV=o2Q2εSCharge changes sign with applied potential, patchcharge does not!First, apply unipolar potential and measure effect onTMs; <strong>the</strong>n switch <strong>to</strong> bipolar potential and measureeffect on TMs (square wave with same period…)∆x∆y+ V+ V 0.75µm 0.18µm

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