Differential optical shadow sensor for sub-nanometer displacement measurement and its application to drag-free satellites.
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DOI: 10.1364/oe.25.025201
Abstract: We present a method for 3D sub-nanometer displacement measurement using a set of differential optical shadow sensors. It is based on using pairs of collimated beams on opposite sides of an object that are partially… read more here.
Keywords: differential optical; displacement measurement; displacement; nanometer displacement ... See more keywords