A flow rate fiber optic transducer is made self-compensating for both temperature and pressure by using preferably well-matched integral Fabry-Perot sensors symmetrically located around a cantilever-like structure. Common mode rejection signal processing of the outputs allows substantially all effects of both temperature and pressure to be compensated. Additionally, the integral sensors can individually be made insensitive to temperature.
STATEMENT OF GOVERNMENT INTEREST
This invention was made with government support under contract Number DE-FT26-98BC15167 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.