Cylindrical Electrostatic Probes

The cylindrical electrostatic probes were used to measure electron temperature and density in the ionosphere. Each sensor was basically a Langmuir probe consisting of a collector electrode extending from the central axis of a cylindrical guard ring. The guard rings extended 23 cm from the spacecraft and the collector electrode extended 46 cm. The two sensors were mounted on opposite sides of the spacecraft, and were perpendicular to the spin axis and in the orbit plane. Data sets are no longer available from this experiment.

圆柱形静电探针被用于测量电离层的电子温度和密度。每一传感器本质上为一根朗缪尔探针，由一根从圆柱形保护环中央轴线延伸出的集电极构成。保护环从航天器向外延伸23厘米，而集电极则延伸至46厘米。两个传感器分别安装在航天器的两侧，与自旋轴线垂直，并位于轨道平面内。该实验的数据集已不再可用。