Influence of the thin-layer sensor connections on the accuracy of temperature measurement in the EHL contact

The aim of this paper is to study the influence of changes in the resistance of transducer connections of a thin-layer sensor on the accuracy of temperature measurement in the EHL contact. A model of the sensor was developed. The calculations were made for the assumed temperature distribution in the contact for two shape types of the transducer - symmetric and asymmetric. The results revealed the importance of a careful selection of transducer׳s dimensions and the need for the correction of measured temperatures in order to achieve higher measurement accuracy. The largest measurement deviation occurred in the area of maximum temperature. The distribution of temperatures obtained from the measurements with both symmetric and asymmetric transducers did not differ significantly.