Meteorological Two-Axis Fluidic Wind Sensor Improvement Modification.
Final technical rept. 20 Jun 73-30 Apr 74,
BOWLES FLUIDICS CORP SILVER SPRING MD
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Two matching pairs of round nozzles made by electro-depositing technique were selected as the improved performance two-axis wind sensor. The whole assembly was then calibrated through a rectangular-to-polar converter in a low speed wind tunnel. The performance improvement effort resulted in a reduction of maximum error in resolved wind speed over the 0 degree to 360 degree direction range from a previous plus or minus 50 down to a plus or minus 10 at 15 ftsec or 5 meterssecond tunnel wind velocity and an indicated direction angle error of less than plus or minus 10 degrees. Author