Robotic implementation of the slide method for measurement of the thermal emissivity of building elements

摘要: Abstract A significant interest exists in measuring the thermal emissivity of building surfaces since high values combined with solar reflectance allow rejecting energy absorbed by irradiated surfaces, whereas intermediate or low permit to limit condensation humidity, heat loss sky, transfer through airspaces. The most used measurement method is probably that described ASTM C1371 Standard, which correlates radiative flux exchanged infrared between sample surface, kept at ambient temperature, and bottom surface a hot emissometer head. With samples showing conductivity, ‘slide method’ modification generally used: head allowed slide above order prevent this from warming up. movement, however, carried out hand time needed achieve stabilized output, therefore may be time-consuming also affected operator. In solve both problems, an automated approach proposed here, moved arm robot. This manages either movement calibration reference samples, interacting computerized data acquisition system monitors output.