高精度激光倾角测量技术研究

Research of High Accuracy Laser Inclination Angle Measurement

本文提出了一种高精度激光电子二维倾角测量技术 ,该技术利用液体表面多次光反射 ,将倾角变化转换成激光光斑的位移 ,并通过多次光学反射实现光学放大 ,从而实现了倾角和倾角变化的高精度测量 利用本技术实现的倾角测量仪器具有测量精度高、体积小等优点 ,经过标定试验系统测量精度达到 2 .5″ 高精度激光电子二维倾角测量系统可广泛应用于水坝安全监测工程。

A new method for inclination angle measurement by laser was described in the paper. The main principle of this system was using the multi-reflection for displacement amplifier, and the inclination angle was calculated by the displacement. Numerical filter technology was used in laser inclination angle measurement system. Influence of main parameter of accuracy was analyzed in the paper, and the experiment was set up. The accuracy of the measurement system is 3″. The system had been used in dam safety monitoring successfully in Shaanxi Province of China.