实验研究采用摄影法，分别以太阳和月亮为光源拍摄焦平面上的像斑。
The radiation flux distribution at the focal image is experimentally determined by a photographic technique. using the sun and moon as the radiation sources respectively.
飞行体的姿态测试方法有许多种，如太阳方位角传感器遥测、高速摄影法、地磁传感器等。
There are many methods to measurement the flying attitude, such as solar attitude angle sensor, high-speed photography and geomagnetic field sensor.
采用相对新的摄影技术——银板照相法，法国物理学家路易斯和利昂于1845年成功拍到首张太阳照片。
Taking advantage of a relatively new technology the daguerreotype French physicists Louis fizeau and Leon foucault made the first successful photographs of the sun on april21845.
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