An experimantal investigation of temperature fields of heat sources on length comparator

Abstract

This paper presents an research of the length comparator’s warm sources surrounding temperature fields. Comparator operates in dynamic automatic mode, so, it contains electric and electronic devices, which get warm over time and radiate this warm. Every heat source creates its own temperature field, which affects calibration conditions. Priori information is insufficient for establishing theoretical model of this process, it was therefore necessary to carry out experimental research. A set of temperature sensors was used for measuring the temperatures of every heat source and near field temperatures. After data logging the thermal graphs were created, analyzed temperatures variation in calibration mode and estimated the weight of every heat source. Finally the presumptions how to minimize influence of heat sources to calibration error were discussed.