空间遥感器反射镜组件的微应力装配技术

Micro-stress Assembling Technique for a Reflector Component of Space Remote Sensor

讨论了某型号空间遥感器主镜组件的微应力装配技术。在镜面被加工到面形RMS值为λ/10(λ=632.8nm)时进行组件装配。为了尽量减小装配应力对镜面精度的影响,分析了主镜镜面的受力情况,并设计了组件装配流程及装配调整装置。装配后对面形进行了测试与检验,面形数值没有发生变化。最后通过力学环境试验和真空热循环试验进行了验证。结果表明,该装配技术满足设计及使用要求。

The micro-stress assembling technique for the main reflector component of a space remote sensor was discussed.The reflector component was assembled when it had the surface deformation ofλ/10 （λ=632.8 nm）.To reduce the influence of the assembling stress on the reflector surface accuracy to the greatest extent,the stress of the main reflector was analyzed and the assembling process and adjustment device were designed.After the reflector was assembled,none changes of its surface deformation were measured.Finally,the reflector was verified in both mechanical test and vacuum thermal cycling test. The result showed that this assembling technique met the design and operation requirements.