Measuring unit for determining temperature of media i.e. fluid, in temperature measuring device, has surfaces comprising material that exhibits linear expansion co-efficient different than linear expansion co-efficient of material of sensor

摘要

The unit (1) has a sensor (3) providing signals based on medium temperature and lying opposite to a set of reference surfaces (6) of a measuring cell (2) at a distance (7). The surfaces contact fluid (4) comprises material that exhibits linear expansion co-efficient different than linear expansion co-efficient of material of the sensor. The surface (6) is in an opposite wall of the measuring cell, and one of the other surfaces is an external side of a projection that projects into an interior of the measuring cell.