某型导弹用测温电路低温故障分析

Failure Analysis of Temperature Measurement Circuitin Cold Climate Condition

针对某型导弹用测温电路低温测试温度跳变故障,从原理上分析了故障产生的原因,采用试验及理论分析相结合的方法,找到了解决该故障的措施,对光电耦合器低温测试方法进行了改进,消除了故障隐患,提高了产品质量。

By analyzing the working principle of the missile temperature measurement Circuit,analyze the failure reason of it in cold climate condition：By experimentation and principle analyzing,the measure to avoid failure is found.The hidden trouble to failure is removed,through improving the testing method of photoelec- tric coupler.The quality of product is improved.