Survey of applications for LART (Th 3.1.1.01).

Non-contact surface temperature measurement remains a problem that no commercially available technique can fully satisfy. Unknown or changing emissivity of the surface, unwanted radiation coming from the environment or multiple reflection from the target as well as transmission properties of gas or windows are the always obstacles for traditional radiometry. The LART technique developed by NPL gives an answer to this problem but its cost has always prevented it becoming a new industrial option. As new low cost high power diode lasers are introduced on the market, industrial demand for LART is rising. This report presents an overview of real world application where LART could be a solution and lists all the associated technical and theoretical issues. Some partial solutions are proposed and a last section discusses technicalities of an Infrared LART sensitive to temperatures as low as room temperature.