FIELD: measurement equipment.
SUBSTANCE: system comprises: (a) matrix of ixj pixel detectors of bolometre type for tracking of object radiation; (b) body, in which mentioned matrix of detectors is located, besides mentioned body has front window, which provides for openness of sensitive elements of all ixj pixel detectors for radiation, coming from object; (c) at least part of column j+1 of closed detectors, which are closed from object with a homogeneous reference surface; (d) circuit of reading for reading of object radiation parametres tracked by each of ixj matrix detectors, and for reading of heterogeneity indication tracked by mentioned detectors in column (j+1); (e) register for registration of radiation values read from all detectors of column (j+1); and (f) unit of processing for detection of standard deviation of all values in specified register and for their comparison to specified limit Q, besides standard deviation over Q is an indication of heterogeneity level that exceeds permissible value.
EFFECT: reduced frequency of calibration.
8 cl, 4 dwg
