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A FORTRAN code for the calculation of probe volume geometry changes in a laser anemometry system caused by window refractionA computer code was written which utilizes ray tracing techniques to predict the changes in position and geometry of a laser Doppler velocimeter probe volume resulting from refraction effects. The code predicts the position change, changes in beam crossing angle, and the amount of uncrossing that occur when the beams traverse a region with a changed index of refraction, such as a glass window. The code calculates the changes for flat plate, cylinder, general axisymmetric and general surface windows and is currently operational on a VAX 8600 computer system.
Document ID
19880002906
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Owen, Albert K.
(Army Aviation Research and Development Command, Cleveland Ohio., United States)
Date Acquired
September 5, 2013
Publication Date
November 1, 1987
Subject Category
Computer Programming And Software
Report/Patent Number
E-3820
AD-A188714
AVSCOM-TR-87-C-27
NAS 1.15:100210
NASA-TM-100210
Accession Number
88N12288
Funding Number(s)
PROJECT: RTOP 505-62-21
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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