PRÄZISIONS-ORTSBESTIMMUNGEN IN WISSENSCHAFTLICHEN GERÄTEBAUVERFAHREN UND GRENZEN

Abstract

The paper gives a survey of the precision position measurement procedures of scalelines and of the edge of the body, with the accuracy less than 0,5 qm. Shows the paper also the need of the unambiguos definition of the position itself. All of the methods which are based on the photometrical position measurement are working with error only, because of the illumination distribution defined sensorsignal. The author uses vector and tensor calculations for investigation of geometrical error of measuring apparatus.