Practical laser Doppler microscopes

  title={Practical laser Doppler microscopes},
  author={Todd Cochrane and John C. Earnshaw},
Three simple laser Doppler microscope systems suitable for measurements of material flow in narrow vessels with widths from 10 to 250 mu m or greater are described. Measurements of centre-line flow velocities in model narrow channels with widths in the range 60-250 mu m are reported. Velocities of the order of a few mm s-1 were measured; considerably slower velocities are also accessible. Such measurements are likely to be of great interest to biologists.