Hazards of electromagnetic radiation to ordnance (HERO) assessment of electro-explosive devices and validation of extrapolation method for estimation of the safety margin at HERO electromagnetic environments

摘要

HERO is one of the critical electromagnetic environmental effects as defined in the MIL-STD-464A. The HERO electromagnetic environment is very severe for the ship born systems, as it contains the sources of Electromagnetic environments (Radars, HF Transmitters and VHF communication systems etc.) and ordnance systems on the same platforms. Necessarily most of the ordnance system contains the EEDs/EIDs, and these are fired as and when the operation of the ordnance system is desired. HERO environment has the potential threat to cause an inadvertent actuation or firing of these ordnance systems by inducing the sufficient current in the EEDs/EIDs circuits. This results into a disaster and causing the loss of ordnance system along with collateral effects, platform, cost and human being. So now it has become essential to certify every ordnance system to be HERO safe and reliable, when it is on board or when it moving in the stock-pile to safe operation.