CONDUCTION CALORIMETERS - HEAT TRANSMISSION-SYSTEMS WITH UNCERTAINTIES

A critical reading of early papers on heat flux or conduction calorime try (1920-1965) reveals the original kinetic aims of the developed ins trumentation and the progressive appearance of the intrinsic difficult ies. An analysis of current publications demonstrates biased applicati ons/results relating to equivalent problems. Modelling of the systems by the RC analogy of heat transfer equations establishes the problems connected with the structure of the apparatus and also the experimenta l conditions to be fulfilled. Analysis of the equations highlights sev eral possibilities that are used in part today. For instance, the redu ction of noise and drift on the calorimeter output by a software appro ach and the conditions to be attained with crucibles for increased acc uracy.