Stylus contact time during measurement—An effective factor in accuracy

An experimental study was carried out to determine formulae showing the effect of instantaneous and time local deformation at the point of contact between stylus and measured surface on the precision and accuracy of both measuring standard slip gauges and brass workpieces.Such formulae are useful in practice as new correction functions for the precision and accuracy of measurement. Using styli with spherically ended tips of various diameters as used in practice a wide range of measuring forces, different surface finishes of brass workpieces and time of measuring were investigated.