针对槽式太阳能热发电对聚光器面形检测的需求，在详细调研了太阳能聚光器面形检测现状的基础上，提出了一种基于偏折原理的太阳能槽式聚光器面形快速检测方法。采用一种自迭代算法进行曲面重建并且引入摄影法对被测镜位置进行快速定位，使操作更简单，测量速度更快，以适用于在线检测。详细阐述了该方法的测量原理，搭建了相应的实验平台，测量了一面槽式抛物镜的面形。实验结果表明该方法能快速、定性地给出被测镜的面形数据，验证了该方法的正确性和可行性。

In order to meet the demands of surface shape measurement in trough solar thermal power generation, a fast surface shape measurement technique for trough solar concentrators based on deflectometry principle is proposed after investigating the current research situation in detail. A self-iterative algorithm is used to reconstruct the surface shape and the photogrammetry method is adopted to calibrate the position of the measured concentrators. It makes this measurement system simpler and faster to operate and suitable for online test. The measurement principle of this technique is introduced and the testing platform is built. A piece of parabolic trough solar concentrator is measured. The experimental results indicate that the qualitative surface shape data of the measured mirror can be worked out quickly by using this method. And the feasibility and correctness of this method are verified.