In this work we have designed an experimental setup that enables an infrared thermographic analysis of the lyophilization process. The experimental setup contains elements that connect and support the observation of lyophilization process with the infrared camera FLIR A655sc in the Lyostar 3 lyophilizer. Great attention was dedicated to the glass, that has to partially transmit infrared light and be under the effect of a temperature difference of up to 70 K and a pressure difference of up to 10^5 Pa, at the same time fogging has to be prevented on the glass.
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