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本文介绍了采用变容二极管作为主要原件的电容近炸引信目标作用动态模拟装置原理线路。该装置使电容近炸引信在敏感区内弹目接近时的电容变化规律在实验室中得以再现。故其可测试各种原理的电容近炸引信的作用距离。该装置利用负向锯齿波电路给变容二极管提供所特需的反向偏置电压,通过电容变化电路给电容近炸引信提供一定的电容变化信息,其变化规律与弹目交会时的相一致,从而在实验室中实现了对目标作用的动态模拟。文中分析了变容二极管的反向偏置电压变化规律及其处理办法,并对引信与该装置的相互影响及解决办法进行了分析讨论。
In this paper, we introduce the principle circuit of dynamic simulator with capacitive proximity fuze adopting varactor as the main component. The device makes the capacitor near-fuze fuze in the sensitive area close to the change of capacitance when the law was able to reproduce in the laboratory. Therefore, it can test the capacitance of various principles of proximity fuze range. The device utilizes a negative sawtooth wave circuit to provide the required reverse bias voltage to the varactor diode, and provides some capacitance change information to the near-fuze capacitor through the capacitance changing circuit. The variation law is in accordance with that at the time of the projectile meeting, Thus in the laboratory to achieve the goal of dynamic simulation. In this paper, the variation law of the reverse bias voltage of the varactor and its treatment are analyzed. The interaction between the fuse and the device and the solution are analyzed and discussed.