Research on non contact ignition technology based on magnetically coupled resonance

DOI:	10.11809/bqzbgcxb2023.02.005
Keywords:	primer; magnetically coupled resonance; non contact ignition; conductivity; permeability; ceramic skeleton
Abstract:	With an increasing requirement of airtightness for new guns and the development of recoilless guns, the traditional ignition methods of applying energy to the primer through contact fails to meet their needs, and, therefore, this paper designs a magnetically coupled resonant non contact ignition system with an operating frequency of 100 kHz. The mathematical model of the ignition system is established, and mutual inductance, the key factor affecting the transmission efficiency of the ignition system, is analyzed. Maxwell software is used to simulate and analyze the influence of the skeleton and the magnetic core on the mutual inductance of the system. It is concluded that the use of low conductivity and low permeability ceramics as the skeleton can improve mutual inductance, and the addition of a magnetic core around the secondary coil can also significantly improve mutual inductance. The test results show that the non contact ignition prototype made of ceramics as the skeleton material can well perform the ignition function. This technology can be used in the design of non contact primers for guiding barrel weapons.
Published:	2023-02-28
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