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Investigation of dynamic measurement of stylus instruments

In order to increase the efficiency of 3-D surface measurement by using stylus instruments the characteristics of dynamic measurement is investigated. The difference of the dynamic measurement from the static measurement is specified. The problems of dynamic measurement are also addressed. An ideal strategy of dynamic measurement is recommended. In order for analysing the feasibility of dynamic measurement at higher speeds a revised dynamic model of stylus instruments is presented. Theoretical analysis is conducted to specify the restrictions for the measurement speed. Finally experimental results are presented to demonstrate the signal fidelity of dynamic measurement in a wide range of measurement speeds. It is considered that higher measurement speeds than the conventionally adopted ones can be used for measuring most engineered surfaces in order for increasing the efficiency in 3-D surface measurement. :