Mass Driver 2 Final Report Part 1 - NASA/SSI

Table 3.4 Ohmic bucket resistance before and after firing at different voltages (a = 0.514). Table 3.5 Ohmic bucket resistance before and after firing at different voltages (a = 0.63). capacitor voltage = 795V 411V 113V initial bucket coil resistance (ft) 124.8 124.8 124.8 final bucket coil resistance (ft) 276.6 225.0 198.8 peak bucket coil current (amps) 4.03 2.22 0.64 time of current peak (ms) 24.1 28.5 23.3 capacitor voltage = 794V 392V 108V initial bucket coil resistance (ft) 192.0 192.0 192.0 final bucket coil resistance (ft) 320.2 277.8 256.0 peak bucket coil current (amps) 3.28 1.63 0.48 time of current peak (ms) 40.8 46.4 47.5

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