A model of 1/f noise spectrum generaton in granular structures

摘要

A fluctuating spectrum was calculated and a Lorentzian type spectrum obtained, in a contacting spot between the tapered grain boundaries and 1/f type spectrum on th egranular strucutre in low frequency. This is based on the spontaneous temperature fluctuation of the samll conducting sports between the grains and thermal conduction in the granular structures.