摘要
In view of drastic possible changes in fuze environment tempera- ture,a kind of temperature autocompensated detecting circuit for the capaci- tance fuze is proposed.It provides a steady detected output when the envi- ronment temperature varies from-50℃ to 65℃ and keeps a stable detecting sensitivity.Based on an analysis of the circuit,influence of the major param- eters of the oscillating circuit on the amplitude are explored.A few impor- tant controllable parameters affecting the circuit feature are found out.A parameter-control method is given in order to improve the circuit perfor- mance.
针对引信工作环境温度变化大的特点,提出了一种自温度补偿的电容引信探测电路,该电路能使检波输出工作点在-50℃～65℃范围内较好地稳定在使引信灵敏度保持不变的水平上.在进行电路分析的基础上,探讨了振荡电路中诸主要参量对振荡幅度的影响规律,找出了影响电路性能的主要控制对象,给出了一种提高电路性能的参量控制方法.
