Design for Safety and Arming Logic in Torpedo Fuze of Electronic Security System

Based on the characteristic and identification mode of arming environment excitation, water pressure data of initial trajectory, safe distance data and target information are selected as arming environment excitation, and a safety and arming logic according with the trajectory characteristic of a torpedo is designed to realize good matching of arming environment excitation and safety as well as arming logic, and to ensure the safety of torpedo overall trajectory. The safety and arming logic is analyzed by using the Markov theory, and the calculated safety value is much larger than the criterion in the standard GJB373A for fuze security system, which can satisfy high safety design need for torpedo fuze.