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山西省册田水庫水文站1963年試制成功一个土測深仪。仪器的結构如图所示,土测深仪由直徑为2.5分米的上下两个鉄盘組成。两盘用三根长度相等的絕緣綫相联,以保持两盘相互平行而且距离均在0.2米左右。每盘各钻小孔10余个,以减小测深仪的入水阻
Shanxi Datitan Reservoir Hydrological Station 1963 trial success of a soil depth sounder. The structure of the instrument is shown in the figure. The soil depth sounder is composed of two upper plates and two lower plates with a diameter of 2.5m. Two with the same length of three insulated lines connected to keep the two parallel to each other and the distance is about 0.2 meters. Drill more than 10 holes per plate to reduce the sounder into the water resistance