本文介绍了一台行波管电子注测量分析系统,并且对其中关键的法拉第筒探头进行了热分析。通过理论和仿真计算探头的脉冲以及稳态温度分布。探头只在每个脉冲电子束团轰击期间产生一个较高的脉冲峰值温度,探头的稳态温度较低。通过测试结果表明,探头的稳态温度要比仿真结果高,但是远低于探头损坏的温度,探头适用于测量系统。 This paper introduces a traveling wave tube electronic injection measurement and analysis system, and one of the key Faraday tube probe thermal analysis. The probe’s pulse and steady-state temperature distribution are calculated by theory and simulation. The probe produces a higher pulse peak temperature only during each pulse electron bombardment and the probe’s steady-state temperature is lower. The test results show that the probe’s steady-state temperature than the simulation results, but much lower than the temperature of the probe damage, the probe is suitable for measurement systems.