Method and apparatus for simultaneous velocity and temperature measurements in fluid flow

摘要

Disclosed is a method and apparatus for simultaneously measuring the temperature and velocity of a working fluid. The system utilizes a pulsed laser to tag phosphorescent tracer molecules disposed within the working fluid. A CCD camera is used to measure the movement of the tagged molecules as well as the change in emission intensity of the photoluminescent material. The decay rate of the laser induced phosphorescence is used to derive the fluid temperature.