激光光束对大坝变形监测精度的影响因素及解决方法

Factors Affecting the Precision of Dam Deformation Monitoring with Laser Beam and Solutions

大坝变形监测手段多种多样,应用激光光束进行位移监测是一种较好的方法。但在实际应用中,激光光束的漂移、传输折射以及光学畸变对测量系统的测量精度具有不可忽视的影响。文中着重讨论了这3个主要因素对测量精度的影响以及相应的解决方法。

There are many means for dam deformation monitoring, of which the laser beam is preferable. However, in practice, the excursion, transmission refraction and optics aberrance of the laser beam will affect the measuring precision. The paper lays stress on the effects of the three factors on the measuring precision and relevant solutions.