Temperature drift compensation in metrological microbolometer camera using multi sensor approach

The paper presents a new concept of bolometer detector's signal correction for metrological infrared camera. The specially designed camera's hardware with multiple temperature sensors along whole optical path is described. Developed nonlinear, multidimensional computational methods allow to update the correction coefficients of focal plane array detectors online. The results of the work reduces the periodic use of mechanical shutter. This enables the continuous registration of the object temperature during the measurement in Non Destructive Testing and medical application.