The invention belongs to the technical field of space, and particularly relates to a method for evaluating and calibrating pollution of plume of an ion engine to a satellite platform, which comprises the following steps of: recording light sensation output current of a first sun sensor and pollutant dust density at each time point of operation of the ion engine; carrying out fitting analysis on the light sensation output current and the pollutant dust density, and constructing a prediction model of the pollutant dust density by taking the output current as a variable; calculating the solar elevation angle theta of the plane where the first sun sensor is located through the second sun sensor; and after the surface of the first sun sensor is cleaned, recording the light sensation output current of the first sun sensor, and substituting the output current/cos theta as a variable into the prediction model to obtain the corresponding pollutant dust deposition density. The method can achieve the evaluation of the wake flow pollution of the ion engine on the surface of the satellite on the basis of not depending on special pollutant analysis equipment, reduces the size and weight of the satellite, and improves the accuracy of a prediction model.

    本发明属于空间技术领域,特别涉及一种离子发动机羽流对卫星平台污染评估标定方法,包含以下步骤:记录离子发动机运行各个时间点的第一太阳敏感器光感输出电流和污染物积灰密度;对光感输出电流和污染物积灰密度拟合分析,以输出电流为变量构建污染物积灰密度的预测模型;通过第二太阳敏感器计算第一太阳敏感器所在平面的太阳高度角θ;将第一太阳敏感器表面清洁后,记录第一太阳敏感器光感输出电流,将输出电流/cosθ作为变量代入预测模型获得对应的污染物积灰密度。本发明在不依赖专用污染物分析设备基础上即可实现对卫星表面离子发动机尾流污染的评估,降低了卫星体积重量,提高了预测模型的准确率。


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    Titel :

    Evaluation and calibration method for pollution of ion engine plume to satellite platform


    Weitere Titelangaben:

    一种离子发动机羽流对卫星平台污染评估标定方法


    Beteiligte:
    LUO YANG (Autor:in) / XU NUO (Autor:in) / GAO HUI (Autor:in) / WANG ZHONGJING (Autor:in) / JI MENG (Autor:in) / JING WENLI (Autor:in) / ZHANG CONG (Autor:in) / MENG QINGYU (Autor:in)

    Erscheinungsdatum :

    2024-05-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64G Raumfahrt , COSMONAUTICS / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01J Messen der Intensität, der Geschwindigkeit, der spektralen Zusammensetzung, der Polarisation, der Phase oder der Pulscharakteristik von infrarotem, sichtbarem oder ultraviolettem Licht , MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT




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