Improved multisensors signal processing

The algorithm of the program was created to approximate the output signal of multisensor (MS) using the functional dependency of MS output voltage from MS operating frequency for a fixed thickness of tested films, the output voltage of the MS film thickness at a fixed frequency. The MS data obtained by sine wave eddy current measurement. It is investigated the influence of different type of function approximation accuracy of MS signals.

It is shown that the smallest approximation error obtained using as polynomial function of the summation of first power polynomial and exponential function. This is indicates correctness and efficiency of noise reduction. This research is aimed to investigate and find effective, specialized and cheap tool for multisensor signals processing.