Two-stage segment linearization as part of the thermocouple measurement chain

An implementation of a two-stage piece-wise linearization method for reduction the thermocouple approximation error is presented in paper. First, whole measurement chain transducer described, and possible analysed to define required level accuracy transfer characteristics. Evaluation functions analysis errors are performed by virtual instrumentation software package LabVIEW. The appropriate thermocouples other sensors where nonlinearity varies lot over range input values. basic principle this first transform abscissa function linear segment look-up table such way that significantly nonlinear parts expanded before standard linearization. In way, applying equal-segment two times has similar effect non-equal-segment For given examples functions, suggested provides better error, than linearization, with equal memory consumption tables. simple allows it be applied low calculation power microcontroller transducers, as replacement method.