The Measurement of Fluctuations of Air Speed by the Hot-Wire Anemometer (1930)
NASA Technical Reports Server (NTRS) · leaf 22
re then impressed on the amplifier, the direct-current milliammeter reading of the output balancing circuit reduced to as near zero as possible, and the reading of the alternating-current milliammeter noted. In this process two observers cooperated, and an attempt was made to obtain the best… … Figure 12.—Logarithmic plot of the distribution of mean speed, 5 feet downstream from the working section. y=distance from wall, mm. F=mean speed at distance y. F0=mean speed at center of working section of frequency greater than one cycle in one or two seconds. After the reading was obtained the…
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