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空间太阳望远镜中的滤光器必须满足空间使用要求。为改进现有滤光器,设计了新型的滤光器,省去了用于带动波片旋转的多台步进电机及相关传动机构,有效减轻了整个仪器的质量,提高了可靠性。在实验室中保持滤光器内部实际工作温度恒定,找出旋转半波片准确的方位角并调整到理论位置,确定其透过波带位置在656.3±0.2nm,波片不再需要旋转。空间环境模拟试验验证了系统结构的合理性。该结构设计紧凑、密封无泄漏、温控有效。
Filters in space solar telescopes must meet the space requirements. In order to improve the existing filter, a new type of optical filter is designed, which eliminates the need of multiple stepper motors and related transmission mechanisms for driving the wave plate rotation, effectively reducing the overall quality of the instrument and improving the reliability. In the laboratory to maintain the actual internal filter temperature is constant, find out the rotation of the half-wave plate accurate azimuth and adjust to the theoretical position, determine the position of the transmission band 656.3 ± 0.2nm, the wave plate is no longer need to rotate. The space environment simulation test verifies the rationality of the system structure. The structure of a compact design, no leakage seal, temperature control effectively.