Xj. Wang et al., MEASUREMENT OF FLUID-FLOW-VELOCITY PROFILE IN TURBID MEDIA BY THE USEOF OPTICAL DOPPLER TOMOGRAPHY, Applied optics, 36(1), 1997, pp. 144-149
Optical Doppler tomography is demonstrated to be a simple, accurate, a
nd noncontact method for measuring the fluid velocity of laminar flow
in small-diameter (similar to 0.5-mm) ducts. Studies are described tha
t utilize circular (square) plastic(glass) ducts infused with a moving
suspension of polymer microspheres in air and buried in an optically
turbid medium. The measurement of Doppler-shifted frequencies of backs
cattered light from moving microspheres is used to construct a high-re
solution spatial profile of fluid-flow velocity in the ducts. (C) 1997
Optical Society of America