卫星天线在热真空试验中的全场变形测量技术

Whole Field Deform ation Measurem ent Techniquefor a Satellite Antenna in Heat-Vacuum Testing

为真实卫星天线在卫星地面实验站进行热变形测量的需求， 利用卫星天线小模型， 进行测试技术研究。用电子散斑干涉技术， 在无特殊隔振的条件下，进行全场动态变形测量， 获得了全场变形的信息。结果表明， 该项技术完全有可能用于真实卫星天线热变形实时测量。

The heat deform ations of a real satellite antenna m ust be detected inground. A sim ulative testing on a sm allm odelof antenna using Electron Speckle Pattern Interferom er is reported. The w hole field dynam ic deform ation caused by heatis obtainedw ithoutspecialvibration isolation. The results show that it is possible thatthe E S P Iandthe inform ation treatm ent m ethods are used for realtim e m easure of a realsatellite anten na.