• 沉积物输送研究

This sampler is used to measure bed-load of coarse sand and fine gravel in rivers and other water- courses. The streamlined sampler is mounted in a frame and consists of a mouth followed by a basket of fine wire meshing (width of the mesh 300 mu). The sharp decrease of the velocity in the wide sampling chambers causes the sediment material to settle there. A tail fin mounted on the frame keeps the sampler in up-stream direction. The results of the measurements are influenced by the shape of the bed (ridges, dunes, flat beds, etc.). For a successful measurement knowledge of the relief of the bed is essential. The sampler can be discharged on board using the sample trough. The set comprises: the sampler, the bed-load transport meter frame with stabilising tail fin and lever and the sample trough.

好处 Arnhem型河床底沙含量测量仪 04.32

  • 可采集滚动的粗糙沉积物和河底碎石样本
  • 口部允许水和细小物通过
  • 口形结构以保持初始水速度