一、简单的回顾巴歇尔水槽是一种矩形断面短喉道量水槽,具有水头损失小,不易淤积,适用范围广(从非淹没流到淹没流),测流精度高,能连续测读等优点,但结构较复杂,施工精度要求较高。巴歇尔水槽是1920年由美国的巴歇尔提出,并在美国发展起来的一种渠系量水建筑物。巴歇尔提出了喉道宽度由0.25英尺到50英 First, a brief review Parshall sink is a rectangular section of short throat flume with head loss is small, not siltation, wide range of applications (from non-submerged to submerged flow), high precision flow measurement, continuous reading And other advantages, but the structure is more complex, high precision construction. The Parshall Sink was a drainage system developed by Parshall in the United States in 1920 and developed in the United States. Parschel proposed a throat width of 0.25 feet to 50 inches