Museum display case with relative humidity control using very innovative solid state technology
Objects need to be stored in display cases in such a way as to avoid exposure to water vapor as much as possible as it may place the artifacts under mechanical stress, thus weakening them. Relative humidity in display cases is controlled using both passive (temporary) and active systems.
The standard solution
Relative humidity active control systems (like Peltier cells or chillers) are introduced that require a water tank that is filled/emptied from time to time. This is a manual activity and hence error-prone.
Goppion’s cases employ electrolyte membranes: solid state systems replacing bulky and complex devices able to dehumidify the interior without any maintenance and with no need to fill or empty a water tank. This highly innovative membrane works at a molecular level, removing all the hydrogen atoms from the case by means of an electrolytic process and needing only an electric current to operate.
The membrane is switched on and off by a microcontroller at a point set by the user.