EMISSIVITY MEASUREMENT APPARATUS The unit consists a test plate and a black plate, as a comparator, all the physical properties,dimensions, & temp. are equal, heat losses from the both plates are same except radiation losses. Input difference will be due to difference in emissivity. Input given through separate dimmer so temp. of both can be kept equal. Emissivity can determined over a wide range of temperatures. The unit is provided with antirust an attractive powder coating Qty :