FIELD: measurement technology. SUBSTANCE: proposed optical indicator is built on photosensitive element of coordinate indicator of radiation spectra corresponding in assemblage to image of profile of examined surface. It compares positions of maxima of spectra. Precision of measurements is limited only by dynamic range of coordinate indicator with which aid measurement of positions of maxima of spectra is carried out and amounts to not legs than λ and dimension of examined surface is restricted only by power of used light source. EFFECT: increased precision of measurements, capability of examination of large linear dimensions in the order of one meter. 4 cl, 1 dwg
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Authors
Dates
1997-07-27—Published
1994-09-30—Filed