In this paper the data acquisition module based on sigma-delta analog to digital converter (ADC) and MCS-51 compatible microcontroller with dynamic remote reprogramming is presented. The main feature of presented module is in integral nonlinearity of ADC correction. The error of proposed correction is considered in this paper.

The neural networks' method for temperature control of the thermocouple based sensor with controlled profile of temperature field (TBS with CPTP) is considered in this paper.

There is presented error evaluation of temperature measurement system by thermocouple with controlled temperature field. This temperature measurement system provides precision correction of systematic error of temperature measurement in the condition of using thermocouples with significant heterogeneity of electrodes acquired during their exploitation in variable temperature field.

The method of study and experimental researches of the error of method of the thermocouple with controlled profile of temperature field along the main thermocouple are considered in this paper. Experimentally determined values of error of method are compared to the theoretical estimations done using Newton’s law of cooling. They converge well.

There is proposed method of control which could be implemented for heaters situated across electrodes of the main thermocouple and provides stabilization profile of temperature field. The proposed method has small requirements to memory space and computing power so it could be implemented using 8-bit microcontrollers.