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时间引信工作时间和自毁型引信自毁时间靶场射击试验时的空爆光信号测试受天气条件制约较大 ,为此有必要研究空爆回声测试方法。根据炮兵标准气象条件和标准大气关于大气温度沿高度的分布假设 ,以及声速与温度之间的关系 ,通过积分给出了弹丸战斗部空爆回声传播时间的计算公式 ,以此为根据结合外弹道学基本方程即可给出弹丸空爆回声与引信工作时间或自毁时间的对应关系 ,用于引信工作时间或自毁时间测试。与试验结果对比表明 ,所得出的公式是正确的 ,可用于引信技术实践。
The testing of the air-blast optical signal during the shooting time of the self-destruction time fuze and the self-destruction fuze of the time fuze is greatly restricted by the weather conditions. Therefore, it is necessary to study the air-blast echo test method. According to the standard meteorological conditions of artillery and the atmospheric distribution of atmospheric temperature along the height, and the relationship between the sound velocity and the temperature, the formulas for calculating the propagation time of the air-blast echo of the projectile warhead are given by integration. Based on this, The basic equation can be given projectile air blast echo time and fuze working time or self-destruction time correspondence between the fuse for working hours or self-destruction time test. Compared with the test results show that the formula is correct, can be used for fuze technology practice.