The invention further provides an assembly comprising a fluid-flllable container(4), a light source for at least locally illuminating the interior of the container (4) and an optical detector.
The device also comprises an electronic control system (8) for controlling the refrigeration device (1) and at least one light source (9) for illuminating the storage compartment (4).
The BRDF measurement results are closely related to the precision of measurement platform, the sensitivity of measurement instrument, and the stability of illuminating light source.