河工模型水下地形激光自动测量系统的开发

Development of automatic laser measurement system for underwater topography survey in river model test

河工模型试验中水下地形测量精度是非常重要的,介绍了一种新型高精度水下地形测量系统。系统依靠平面定位机构的精准定位,利用激光测距传感器良好的准直性、高精度和对目标无干扰的特点进行水下地形测量,借助基于LabVIEW开发的信号采集程序实现自动连续测量。实践证明,系统操作简单、运行可靠、精度高。该系统水平定位精度0.01 mm,测量精度±1 mm。

The accuracy of underwater topography measurement is very important in the river model test.This paper introduces a kind of new underwater topography measurement system with high accuracy.Depending upon accurate localization of plane positioning mechanism and collimation,high accuracy and noninterference of the laser range sensors,the system measures underwater topography with the aid of signal acquisition program based on Labview.The system realizes high accurate topography survey continuously and automatically.Practices show that the system operation is simple and reliable with high precision.