【摘要】 总结了在悬移质泥沙运动特性试验研究中常用的量测手段，介绍了图像处理技术的基本原理和系统的组成，针对图像处理中的几个具体问题，特别是光片厚度和粒子浓度的选择，结合实践经验进行了讨论．利用开发的颗粒示踪与图像处理系统，对明槽悬移质颗粒的运动特性进行了量测．实践表明，图像处理技术为悬移质颗粒运动特性的研究提供了有力的手段．更多还原

【Abstract】 Various methods of measuring suspended sediment motion were summarized in this paper. The principle of particle image processing technique for velocity measurement was presented and some critical tech-nical problems about Particle Tracking Velocimetry (PTV), such as the PTV system, vertical concentration distrbutions and velocity profiles of suspended particles with diameter of 0. 3,0. 5,0. 7, 1. 0 mm were measured respectively. PTV is shown to be a powerful tool for suspended particle measurement in open channels.更多还原