叶片泵计算尺是利用对数原理制作的一种专业计算尺。它可用于离心泵、轴流泵和旋涡泵等的一般计算。也适合于设计部门和使用部门在制定方案、选型和模型换算时使用。这种计算尺计算速度快。用一般计算尺要来回移动滑尺5～6次,而用它只要一次就能找到答数。使用方法也很简便。仅看看说明书就能掌握。第一次出版后深受欢迎。后来又作了些修改充实。现可计算内容包括:泵功率、泵效率、叶轮比 Vane pump slide rule is the use of logarithm principle of a professional slide rule. It can be used for centrifugal pumps, axial flow pumps and vortex pumps and other general calculations. Also suitable for the design department and the use of the department in the development of programs, selection and model conversion use. This slide rule calculation speed. Slide the slider back and forth with a general slide rule 5 to 6 times, and use it to find the answer as soon as it is used. The method of use is also very simple. Just look at the instructions will be able to grasp. After the first publication popular. Then made some changes to enrich. Calculations now include: Pump Power, Pump Efficiency, Impeller Ratio