Why digital signal processing?
For operation with changing ambient temperatures and process parameters, all pyrometers require mathematical operations to calculate the correct temperature.
This applies in particular to the quotient formation in 2-color pyrometers, the multiplication for the emissivity adjustment and compensation of the temperature coefficients as well as the summation for the correction of gain-dependent offset currents.
In contrast to analog processing, the use of fully digital signal processing of the influencing variables in Sensortherm pyrometers ensures 100% reproducibility of the displayed measured values because digital numbers are processed here and no more or less error-prone analog signals.
In particular, temperature and age-related deviations are thereby avoided and ensures the transferability from device to device.