A digital video model deformation systemThe use of solid-state array cameras and a PC-controlled image acquisition system to measure model deformation in a wind tunnel is discussed. This digital system improves an earlier video model deformation system that used high-resolution tube cameras and required the manual measurement of targets on video hardcopy images. The new system eliminates both the vibration-induced distortion associated with tube cameras and the manual readup of video images necessary in the earlier version. Camera calibration and data reduction procedures necessary to convert pixel image plane data from two cameras into wing deflections are presented. Laboratory tests to establish the uncertainty of the system with the geometry to be used are described.
Document ID
19880049281
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Burner, A. W. (NASA Langley Research Center Hampton, VA, United States)
Snow, W. L. (NASA Langley Research Center Hampton, VA, United States)
Goad, W. K. (NASA Langley Research Center Hampton, VA, United States)
Childers, B. A. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: ICIASF ''87 - International Congress on Instrumentation in Aerospace Simulation Facilities