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对于高精度的计量泵来说,流量是最重要的指标之一。流量随多种因素而变,如驱动泵运行的电机转速,介质的粘度等这些外部因素。但是,即使保持外界条件不变,泵的流量仍然是不断变化的,这种变化具有随机的特性,完全是由于泵本身的结构、工艺等造成的。这种由内部因素造成的流量的稳定与否,表明泵质量的高低。采用微型机对泵流量的稳定性能进行鉴定所用的方法是,在相同的条件下,独立地测得一组流量质Q_1、Q_2……Q_n作为子样,它们服从正态分布。然后计算出平均流量
For high-precision metering pumps, flow is one of the most important indicators. Flow varies with a variety of factors, such as the motor speed at which the pump is running, the viscosity of the media, and other external factors. However, the flow of the pump is constantly changing, even with external conditions remaining constant. This change has a random nature, entirely due to the structure of the pump itself, the process, and so on. This internal factors caused by the stability of the flow, indicating the level of pump quality. The method used to identify the stability of the pump flow using a microcomputer is to independently measure a set of flow qualities Q_1, Q_2 ... Q_n as sub-samples under the same conditions, which follow a normal distribution. Then calculate the average flow rate