FIELD: instrumentation.
SUBSTANCE: proposed process exploits temperature transducer with heating by periodic function against background of constant component. It includes registration of transducer temperature and heating rate as well as application of calibration graphs of medium parameter versus transducer parameter. In compliance with this invention, said transducer temperature and heating rate are counted three times in heating function one period. Note also that parameters of said transducer temperature and heating rate are defined by formulae for integral heat exchange factor 
for transducer heat capacity 
at medium temperature 
where θ(t) and θ'(t) are instant transducer temperature and its derivative, P(t) is instant heating rate; α is factor of heat exchange of transducer with medium; S is transducer surface area; m is transducer weight; c is specific heat capacity of transducer material.
EFFECT: higher accuracy, enhanced performances.
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