METHOD FOR DETERMINING INDICATOR OF THERMAL INERTIA OF TEMPERATURE SENSOR Russian patent published in 2019 - IPC G01K15/00 

FIELD: measurement technology.

SUBSTANCE: invention is intended for use in oceanology and can be used in other areas. Essence of the invention lies in the fact that the analysis of the transient process after the application of the step action is used, while using two sensors in common, the first of them with an unknown indicator of thermal inertia and the second model with a known indicator of thermal inertia, a stepped temperature is simultaneously applied to the inputs of two sensors, the transient temperature difference of two sensors is used to determine the time of maximum occurrence thereof, the time interval is registered from the beginning of this transient process to the maximum, the thermal inertia index of the first sensor is determined by numerical solution of the where ε_x – unknown indicator of thermal inertia of the first sensor; ε₀ – known indicator of thermal inertia of the second sensor; t_m – the length of time from the beginning of the transition process temperature difference between the first and second sensors to its maximum.

EFFECT: increased accuracy and simplified calibration procedure.

1 cl, 2 dwg