Research on the coupling channels of invariable amplitude sine wave irradiation to radio fuze and protection

In order to bring forward the countermeasures of reducing radio fuze accidental explosion in complicated electromagnetism circumstance, on the basis of introducing experiment equipment and method, the irradiation effects of invariable amplitude sine wave to radio fuze is studied. The coupling channels of sine wave to radio fuze are the antenna and projectile. The effecting mechanism is that the energy of sine wave couples to radio fuze via the antenna and projectile, changes the working state of high frequency circuitry, causes the fluctuation of demodulation voltage, then results in the accidental explosion of radio fuze. Selecting appropriate stabilivolt to protect the radio fuze. The irradiation experiment results show: the protection method can avoid accidental explosion of the radio fuze in the invariable amplitude sine wave irradiation field.