A Symmetrical Thermopile

Abstract

The performance characteristics of a symmetrical thermopile are analitically studied, ane experimental results are compared with Thermo-elements of Rubens type and Moll type are treated as well. The following points are to be noticed:
(1) By the formula reduced, sensibility and time-constant can be predetermined from dimension and material constants.
(2) Preferable dimension and selection of materials can be seen from the formula, for different purposes.
(3) From calculated results and experiments, it is clearly shown that the thermopile can be satisfactorily used as a practical instrument for thermo radiometric use.