New technique in the processing and handling of laser velocimeter burst data

Abstract

A newly developed signal processing and data handling system for use in laser velocimetry is described. The system provides for entry into lower signal-to-noise ratio environments for capture of data from smaller particles than was formerly practical. Experimental data from a two-component Bragg cell directional velocimeter is used in comparing the system with a conventional counter-type processor. Dramatic improvement in the ’’particle lag problem’’ is seen.