Abstract.
A laser-based method for measuring the three components of the velocity in a plane simultaneously and instantaneously without seed particles is presented. This is achieved by combining a laser flow-tagging technique with stereoscopic detection, in which the tagged flow is viewed from two different directions. A single CCD camera is employed for this purpose by using a new optical detection system. The flow tagging is performed by two consecutive laser pulses, i.e., “write” and “read” laser pulses. The write laser creates a grid of tracer molecules (NO) by inducing a photodissociation process. The three-dimensional motion of the tracer molecules is measured by a thick read laser sheet.
Author information
Authors and Affiliations
Additional information
Received: 22 July 1999 / Revised version: 5 August 1999 / Published online: 30 September 1999
Rights and permissions
About this article
Cite this article
Krüger, S., Grünefeld, G. Stereoscopic flow-tagging velocimetry. Appl Phys B 69, 509–512 (1999). https://doi.org/10.1007/s003400050844
Published:
Issue Date:
DOI: https://doi.org/10.1007/s003400050844