一、简单原理均环压(Annubar)一次元件是60年代后期发展起来的一种简便、低廉而且有足够精度的差压流量元件,它也是按照一种经典的伯努利能量平衡方程式来测量流量的、其测量原理类似于毕托管,不同之处是其正压管贯穿整个管道截面,将整个截面划分为四个截面积相等的环形与扇形截面,对应于每个环形截面在正压管的相应位置上开取压 First, the simple principle are Annubar (Annubar) a component is developed in the late 1960s, a simple, inexpensive and accurate enough differential pressure flow components, it is also based on a classic Bernoulli energy balance equation to measure the flow , The measuring principle is similar to the Bisto tube, the difference is that its positive pressure pipe through the pipe section, the entire cross section is divided into four equal cross-sectional annular and fan-shaped cross-section, corresponding to each annular cross-section in the positive pressure pipe Open the corresponding position pressure