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Mathematical Modelling of Electromagnetic Induction Coil gun for Non-Lethal Self Defence Applications

Nathi Ram Chauhan, Deeksha Singh, Aditi Monga, Shivangi Sharma, Shreya Devgun, Manish Saraswat


To take someone's life is often termed as the biggest slanders spiritually one can commit be it while protecting one's self from endangering acts. Non-lethal weapons provide us with an opportunity to come over this dilemma thereby providing a numbing effect to save from devastating consequences. The objective of this paper is to present a non-lethal portable induction coilgun that can potentially address security concerns. To serve the respect and protection of human life, the speed of the gun is proposed to be kept low. To design such a gun, appropriate excitation circuit and magnetic fields is simulated and gun works on the principle of Maxwell’s Equation of Electromagnetism. An analytical model describing the motion for firing has been developed using MATLAB and Proteus software. The projectile (30g) accelerates with the maximum speed of 4.5m/s and provides 24 shots per battery charge. Depth of penetration to be .157 inches with velocity of 4.5m/s which can cause a maximum damage of 25 per cent to tissue. Further, suitable materials for projectile and coil have been proposed.


Armature; capacitor bank; charging circuit; coilgun; electromagnetic force; magnetic field; non-lethal

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