Oxford Lasers

A short flash of light from a laser illuminates a screen, which acts as a bright background behind the subject spray. The short pulse from the laser freezes the motion, allowing blur-free visualization of drop size and shape. Images from the digital camera are transferred to a computer and high-speed real-time particle sizing software analyses the images obtained in order to build up the diameter distribution.

Velocity Measurement

By double-pulsing the laser in a technique similar to PIV, size vs. velocity distributions may also be measured. For more information about the technique see our in-flight sizing datasheet.