On voltage and power indicators for thermal noise in metals
|Umsetzung||E. Grycko, W. Kirsch, T. Mühlenbruch|
|Technisches Management||F. Wyskott|
In - we are concerned with the thermal voltage signal in metals. Methodically, we base on mathematical models that can be evaluated by the application of statistical inference to simulated data. We try to establish bridges between mathematical model, computer experiment and empirical measurements. Sometimes it turns out that this kind of bridges can be based on a comparatively modest experimental instrumentation.
According to a Drude model of the valence electron gas (cf. ) and according to our experimental experience a long thin wire is required for the generation of a noise voltage signal which can be identi ed on the screen of an oscilloscope. Based on this model we conjecture that the amplitude of the noise signal depends in particular on the material of the wire. Unfortunately, we had such problems with the acquisition of a thin wire made out of Mn, Ti, Sc, Ga, Lu, Zr or Y that we cannot o er any empirical evidence for our conjecture. There are nevertheless reasons for the hope that a popularization of appropriate long thin isolated wires on the market would enable the involved researchers to develop applications of the phenomenon of noise voltage for Energy Harvesting (cf.  and ).
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