随着节水农业的推广，为实现低成本、提高用水有效性的目标，目前农田灌溉方式正朝着低压、小流量方向发展。用于测量管道中压力、流量的传感器也逐步应用到农田灌溉控制系统中。本文选用SIIC-F/P-P/5-5.0型压力流量传感器进行标定试验，将在不同流量下7个传感器测得的压力和流量数据分别进行单因素方差分析。在5%的显著性水平，忽略试验中偶然误差的影响，各传感器之间无显著差异。最后通过对多传感器数据的加权平均融合并进行线性拟合，得出对压力、流量数据的标定函数。标定试验表明，该传感器具有良好重复性和稳定性，适用用低压小流量滴灌控制系统。

The SIIC－F/P－P /5－5．0 pressure flow sensor can measure the pressure and flow in the pipe at the same time，which is an ideal sensor for water saving agriculture． In order to test the stability and repeatability of the measurement data by this sensor，seven identical sensors were selected for calibration test，the single-factor variance analysis was performed on the measured pressure and flow data of each sensor under different flow rates． The results showed that: under the condition of 5% significance level，ignoring the effect of accidental errors during the test，there was no significant difference between the sensors． After calibration，the input and output data of the sensor showed a good linear relationship． So the sensor is suitable for low pressure and small flow drip irrigation．