The Measurement of Fluctuations of Air Speed by the Hot-Wire Anemometer (1930)
NASA Technical Reports Server (NTRS) · leaf 14
current of the last stage of the amplifier is passed through a fixed resistance and the voltage drop across this resistance is balanced by a voltage divider. In the balancing circuit there is placed, in addition to the direct-current milliammeter which serves as the indicating instrument of the… … Figure 5b.—Wiring diagram of amplifier, compensator, and output circuit milliammeter and the wave form photographed. A photograph oi (he apparatus is shown in Figure 4 and a wiring diagram in Figures 5a and 5b. For simplicity, certain protective switches and the oscillograph circuit are omitted in…
NASA Technical Reports Server (NTRS)
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