一、概况流量测量在人们日常生活和工业生产中经常碰到。如煤气、石油产品、天然气、蒸汽和污水等都要测量其流量。其测量形式主要有两种:一种是用与流量成平方根关系的差压方法。当流体经节流件时测量节流件前后产生的差压,即可度量流量。基本公式为 First, an overview Flow measurement in people’s daily life and industrial production often encountered. Such as gas, petroleum products, natural gas, steam and sewage to measure its flow. There are two main forms of measurement: one is the differential pressure method with the square root of the flow rate. When the fluid measured by the throttle when the pieces before and after the differential pressure generated, you can measure the flow. The basic formula is