Diode Commutation Results

Coil C

The graph of fig1 shows the difference in the commutating current decay for 1 diode and 10 diodes.

Fig1. Difference in commutating current decay.

 

The decay time for 10 diodes is around one third that of 1 diode.

 

Fig2. Muzzle speed gain using multiple series diodes

 

Fig3. Muzzle speed gain using multiple series diodes

 

Fig4. Muzzle speed gain using multiple series diodes

 

Table 1 shows the gain in velocity and energy using 10 diodes instead of 1.

Projectile Speed (m/s) 1 Diode Speed (m/s) 10 Diodes Gain (%) Energy (J) 1 Diode Energy (J) 10 Diodes Gain (%)
Solid 1.02E+1 1.19E+1 1.69E+1 6.58E-1 8.83E-1 3.67E+1
4mm Core 1.05E+1 1.22E+1 1.53E+1 6.01E-1 8.00E-1 3.30E+1
6mm Core 1.08E+1 1.24E+1 1.58E+1 4.92E-1 6.60E-1 3.41E+1

Table 1. Gains in speed and energy using multiple series diodes.

 

Yet again we see an improvement with the gain in energy. These gains are greater than those for both coil A and B.

 

 

 

  
Results Coil BResults Coil DTop