Calibration method for reference temperature source in thermocircuit

摘要

The calibration method employs separation of the thermocircuit (1) from its measuring point and provision of an externally generated voltage corresponding to a given temperature value. The measured voltage at a further point in the thermocircuit is detected and the temperature at this point is determined from the difference between the externally generated voltage and the measured voltage. The thermocircuit may use 2 electrical conductors (2,3) of different metals which are coupled together at a measuring point (4) and connected to Cu lines (6) at an interface (5), for connection to a voltage measuring device (7).