A novel lens-free high-accuracy InGaAs radiation thermometer for radiation temperatures above 300 °C

2142 2003 eng 155 162 conferenceobject 0 -- -- -- A novel lens-free high-accuracy InGaAs radiation thermometer for radiation temperatures above 300 °C VDI-Bericht 1784 2 Jürgen Hartmann B. Gutschwager Jörg Hollandt Physik Jürgen Hartmann Wärme