noise

Methodologies preprocessing the fluctuation-noise data in the study of chemical sources of current have been proposed. The object of the study was lithium dioxide-manganese element in the discharge process. Initial measurements were performed on compensated DC voltage chain. The overwhelming trend component of discharge was partially disavowed by linear approximation. The residual effects of the trend was reduced through polynomial approximation of the high power. It was shown that the spline fitting more efficient.

The study relates to the general problem of noise research in electrochemistry. The special issue of recognition of a weak signal against the background of equipment noise was considered . Chemical power sources were used as an object. The measurement results were analyzed using a standard model including the noise voltage and noise current of the equipment. The criterion of correctness of the model was compliance with the quadratic law of addition of components of a random noise signal.