Open AccessWidefield laser doppler velocimeter: development and theory.
Author(s) -
Bruce D. Hansche,
Phillip L. Reu,
Jordan E. Massad
Publication year - 2007
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/902222
Subject(s) - computer science , software , sample (material) , doppler effect , laser , laser doppler velocimetry , field (mathematics) , current (fluid) , acoustic doppler velocimetry , computer hardware , electronic engineering , acoustics , optics , engineering , physics , electrical engineering , mathematics , medicine , blood flow , astronomy , pure mathematics , thermodynamics , programming language
The widefield laser Doppler velocimeter is a new measurement technique that significantly expands the functionality of a traditional scanning system. This new technique allows full-field velocity measurements without scanning, a drawback of traditional measurement techniques. This is particularly important for tests in which the sample is destroyed or the motion of the sample is non-repetitive. The goal of creating ''velocity movies'' was accomplished during the research, and this report describes the current functionality and operation of the system. The mathematical underpinnings and system setup are thoroughly described. Two prototype experiments are then presented to show the practical use of the current system. Details of the corresponding hardware used to collect the data and the associated software to analyze the data are presented
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