Analysis For Vacuo-Thermojunction Characteristics Using Microcomputer

Fourier analysis technique is adopted to evaluate the dc and ac component in a thermo-electromotive force (TEMF) from a vacuo-thermojunction(VTJ) at ultra-low frequency. In experiments, a digital wavememory(DM) and a microcomputer(MC) are used to minimize a noise by repeating the analysis and averaging each results. A number of repetition required to sufficiently suppress the influence of the noise is given.