为提高抛物槽式太阳能聚光器的聚光效率，需要对聚光器的整体面形进行检测和调整。提出采用吸热管反射成像法检测槽式聚光器各子镜的安装位置及倾斜角度，进而获得聚光器的整体面形信息。通过测量相机与被测聚光器的相对位置，可计算吸热管在待检测子镜中的成像位置及形状，并推导了吸热管在聚光器中的理论成像位置计算公式。进行了吸热管反射成像法检测槽式聚光器面形的实验。通过调整聚光器子镜的安装位置和倾斜角度，使吸热管在子镜中的实际成像位置与理论位置重合，验证了检测方法的正确性和可行性。

To improve the concentrate efficiency of the parabolic trough concentrator, the measurement and adjustment of overall surface are needed. The theoretical overlay photographic method is used to measure the installation position and tilt angle of facet mirrors, and then the concentrator surface information is obtained. It can calculate the theoretical shape and position of the receiver in image by measuring the relative position of concentrator and cameras, while the theory position formula of receiver is deduced in concentrator. The experiment of the theoretical overlay photographic method measuring the concentrator surface is done. This method can match the actual position of receiver to theoretical position in image by adjusting installation position of facet mirrors, which verifies the feasibility and correctness of this method.