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粒子激发X射线谱仪(APXS)安装在月面巡视器外部,利用巡视器的机动性和机械臂的灵活性,可以对月面有研究价值的月岩及月壤进行有针对性的探测.由于裸露在巡视器外部,月球复杂外热流会对APXS产生较大影响.鉴于此,需对APXS进行合理的热设计,以保证APXS的探测器和电子学器件工作在允许的温度范围内.提出了APXS的热设计方案,据此对APXS进行热仿真计算,计算结果得到了相应热平衡试验的较好验证.
The Particle Excited X-Ray Spectrometer (APXS) is mounted on the surface of the lunar rover. With the mobility of the patrol and the flexibility of the robotic arm, targeted lunar and lunar conditions on the lunar surface can be probed. APXS is greatly affected by the complex lunar heat flux due to exposure to the outside of the parabola, and APXS needs to be thermally designed to ensure that APXS detectors and electronics operate within the permissible temperature range. The thermal design scheme of APXS is used to calculate the thermal simulation of APXS. The calculation result is verified by the corresponding thermal equilibrium test.