4.12 Infraredradiation detection u The relationship between an object's temperature and radiation power are described by stefan -Boltzmann's law W (4.123) where w= net radiant heat transfer or heat flux in w/, o= the Stefan-Boltzmann constant. 5.6697x10-ow.m. K T= thermodynamic temperature in K e- the specific radiance of object (ratio of non-black-body radiance to black-body radiance) The radiant heat flux of an object th Is proportional to the power of its absolute temperatureT❑The relationship between an object’s temperature and radiation power are described by Stefan-Boltzmann’s law: 4.12 Infrared radiation detection 4 W =  T (4.123) where W = net radiant heat transfer or heat flux in 2 W m ,  = the Stefan-Boltzmann constant, 8 2 4 5.6697 10− − −  W m K , T = thermodynamic temperature in K ,  = the specific radiance of object (ratio of non-black-body radiance to black-body radiance) The radiant heat flux of an object, W , is proportional to the 4th power of its absolute temperature T