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Improved Apparatus for the Measurement of Fluctuations of Air Speed in Turbulent Flow (1934)

NASA Technical Reports Server (NTRS) · leaf 22

An illustration from Improved Apparatus for the Measurement of Fluctuations of Air Speed in Turbulent Flow, 1934, leaf 22
s of tests with two condenser with the uncompensated amplifier, to the same scale; and the curve marked "compensated" is the perform- settings. The horizontal line of ordinate 1.0 repre- ance resulting from the combination of hot wire and sents the ideal of uniform response of the hot wire plus… … 5000 1000 2000 3000 4000 FIOUBI 10.—Frequency characteristic of amplifier alone. In each instance the Frequency, cycles per second curve is plotted on the basis of maximum output=1.0. The actual maximum output compensated is 121.5 times the uncompensated maximum output Figure 11.—Frequency…

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