Pratt & Whitney and Virginia Tech have announced a brand-new technology, which will use lasers to accurately measure important gas turbine engine factors such as velocity, temperature, and density. This technology, which is pending a patent, is known as Filtered Rayleigh Scattering for Thrust measurement, or FRST.   FRST makes use of the fact that light scattering from air molecules above a laser-illuminated area, will provide information about the gas flow field. A laser beam is shone across the turbine’s gas path and a high-quality camera keeps track of the scattering light. This recording is then filtered to eliminate signal corruptions. 

This content is restricted to site members.

If you are an existing user, please login below.
New users may register below.

Existing Users Log In