通风机的测试准确程度及方法的简繁,影响着整个能量平衡过程,特别是对电平衡影响更大。为此,研究一种实用面简单的方法达到要求的目的是很有必要的。国内一些文献里,对通风机平均动压的测试,都采取把测量截面分成若干个面积相等的部分,并近似的认为每一部分中的动压是相等的,在其中选择适当的点进行测量,将测得的结果用加权平均方法加 Fan test accuracy and method of simple, affecting the entire energy balance process, especially greater impact on the electrical balance. Therefore, it is necessary to study a simple and practical method to achieve the required goal. Some domestic literature, the average dynamic pressure of the fan test, taken to measure the cross section is divided into a number of equal parts, and approximately that each part of the dynamic pressure is equal to the appropriate point in which to select the measurement, The measured results are weighted average method plus