Influence of Distributed Capacitance on Information Transmission Characteristics of Collinear Setting System of Fuze and Its Optimization
An equivalent circuit model based on the setter module,the energy and information transmission module and the fuze circuit module is established for the effect of distributed capacitance on the setting reliability in the process of fuze collinear setting.The influences of distributed capacitance on the information transmission characteristics of collinear setting systemwhen the setting output signal is at high level and low level are studied,respectively.The conclusion is drawn that the distributed capacitance has little influence on the collinear installation system at high level,and the relationship between the low-level pulse width of the received signal recognized by the fuze and the distributed capacitance at low level is deduced.Finally,two optimization methods are proposed,one uses a diode to shield the external factors,such as the capacitance introduced by the incorporated cable,and the other uses a parallel-connected resistor with a smaller resistance to reduce the time constant of the system,thereby improving the recognition rate of the fuze.The low-level pulse width improves the reliability of fuze setting.The simulation and experimental verification show that both methods improve the reliability of the fuze to identify the received signal.