Design study of a strain guage wind tunnel balance
Concannon, Michael John
Schmidt, Louis V.
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A three-component balance system for use in measuring drag and lift forces as well as pitching moments acting on a wind tunnel model is presently available in the Department of Aeronautics. The original manual counterweight readout procedure was considered obsolete from the standpoint of data acquisition; therefore, a revision was incorporated using strain gauge load cells. The design and installation of the electrical readout system was accomplished. Calibration procedures were devised and performed in order to develop a loading output matrix for use with a rapid data acquisition system and compatibility with an analog-digital computer system.
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