Experimental and Theoretical Verification of the Low Impedance Inductive Ignition Concept.
Test rept. Jan 84-Sep 85,
ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ FIRE SUPPORT ARMAMENT CENTER
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A mathematical model for an air core transformer located in a conventional gun breech has been developed. Coils were fabricated based on preliminary results. The primary and secondary coils were installed in a mushroom head in a short section of the gun barrel. The system was tested with both electric match and resistive secondary loads. The secondary coils used with the electric match loads were fabricated from lead Pb and had a nominal resistance of 82 milliohm. A 1500 joule, 5000-volt capacitor supply was used as the power source. Electric matches were ignited at 46 mm from the breech surface. Experimental results indicate substantial agreement with the theoretical model and further agreement is expected with a faster pulse discharge. Keywords Air force transformer Electric match Pulsed power supply Inductance Skin depth Coils Ignition concept.