论文标题
简化金星大气探针的最小质量极限
Minimum-Mass Limits for Streamlined Venus Atmospheric Probes
论文作者
论文摘要
小型，消耗的滴探针是在金星的低大气中进行测量的一种有吸引力的方法，增强了必须保留在高于50 km高度的良性温度区域中的轨道或空中平台的能力。但是，探针小型化受到为常规有效载荷提供热和压力保护的必要性。本文确定了一直运行到金星表面的绝缘压力容器探针的最小质量限制。使用捕获相关物理学的简单模型明确得出了探针性能和主要系统组件质量的缩放定律。精简探针被认为是降低系统质量的高效策略，但也减少了可用于数据收集和传输的时间。为一系列微型探针提供了权衡，指南和设计图表。如果可以比标准的金星下降时间表进行所需的科学测量速度，则5公斤的总系统质量与精简的探针合理。
Small, expendable drop probes are an attractive method for making measurements in the lower atmosphere of Venus, \,augmenting the capabilities of orbiters or aerial platforms that must remain in the benign temperature region above 50 km altitude. However, probe miniaturization is impeded by the need to provide thermal and pressure protection for conventional payloads. This paper determines the minimum mass limits for an insulated pressure vessel probe that operates all the way to the Venusian surface. Scaling laws for the probe performance and mass of major system components are explicitly derived using a simple model that captures the relevant physics. Streamlining the probe is found to be a highly effective strategy for lowering the system mass, but it also reduces the time available for data collection and transmission. Tradeoffs, guidelines and design charts are presented for an array of miniaturized probes. Total system masses on the order of 5 kilograms are plausible with streamlined probes if the desired science measurements can be performed faster than a standard Venus descent timeline.
