Correctness of Velocity Evaluation of System Using Spatial Filter
release_jcr5xkzodzc4refol5n4lxkf3u
by
A. Prokes
2002 Volume 11, p24-26
Abstract
In this paper, a velocity measurement method using the spatialfilter is presented. Luminous emitance of the surface passing throughthe moving spatial filter and optical set is projected to the activearea of photo-detector. The velocity determination is based on thefrequency spectrum evaluation of the photo-detector output signal. Theformula for velocity computing is derived first. Then, correctness ofvelocity evaluation in dependence on the surface and measuring systemproperties is discussed.
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