DocumentCode :
1228881
Title :
Radio Telemetry of Stagnation Pressure from a Wind Tunnel Model Magnetically Supported in Supersonic Flow
Author :
Clemens, P.L.
Author_Institution :
ARO, Inc.
Volume :
2
Issue :
1
fYear :
1964
Firstpage :
10
Lastpage :
15
Abstract :
During a set of aerodynamic tests in a Mach number 2. 4 wind tunnel, it was proven feasible to telemeter stagnation pressure measurements from within a magnetically suspended, ferromagnetic model. State-of-the-art, f-m radio telemetry, developed for hypervelocity range use, was employed. Although data at the outset of each of three trials reflect errors of less than three percent, inordinate frequency vs temperature interaction introduced intolerable shifts in telemeter center frequency as testing progressed. Several methods may be used to reduce these interactions. Magnetogasdynamic effects arising from the use of the magnetic model suspension technique are discussed in an appendix, and are shown to be negligible in most wind tunnel testing.
Keywords :
Aerodynamics; Atmospheric modeling; Fluid flow measurement; Magnetic field measurement; Magnetic levitation; Magnetoelasticity; Pressure measurement; Probes; Telemetry; Testing;
fLanguage :
English
Journal_Title :
Aerospace, IEEE Transactions on
Publisher :
ieee
ISSN :
0536-1516
Type :
jour
DOI :
10.1109/TA.1964.4319551
Filename :
4319551
Link To Document :
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