TR No. 
ILLUSTRATIONS 
Ducted Impeller Current Meter, 3/4 View 
Ducted Impeller Current Meter, End View 
Waveforms of Outputs of Current Meter and Schmidt Trigger 
Waveforms of Outputs of Current Meter and Binomial Counter 
Calibration Curve for the Current Meter 
Calibration Coefficient vs Angle between Axis of Current Meter and 
Direction of Flow 
Wind Tunnel Calibration Curve for the Current Meter 
Section of C. & G S. Chart No. 353 Showing the Area within Which 
Measurements Were Made 
Lower End of Mounting Strut and Current Meter 
Mounting Strut on Bow of Boat 
NUWS Torpedo Retriever 
Block Diagram of Analog to Digital Conversion Process 
Typical Digitized Velocity Data 
Typical Digitized Velocity Data 
Typical Digitized Velocity Data 
Typical Digitized Velocity Data 
Typical Digitized Velocity Data 
Autocovariance Series Corresponding to Figure 13 
Autocovariance Series Corresponding to Figure 14 
Autocovariance Series Corresponding to Figure 15 
Autocovariance Series Corresponding to Figure 16 
Autocovariance Series Corresponding to Figure 17 
Energy Spectrum Corresponding to Figure 13 
Energy Spectrum Corresponding to Figure 14 
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