Measurement is the eye of industrial production. Flow measurement is one of the components of measurement science and technology. It is closely related to national economy, national defense construction and scientific research. Doing this work well has an important role in ensuring product quality, improving production efficiency and promoting the development of science and technology. Especially in the era of energy crisis and higher automation of industrial production, the position and role of flowmeters in the national economy is more obvious.
The unit m3/h commonly used in engineering can be divided into instantaneous flow rate (Flow Rate) and total flow rate (Total Flow). Instantaneous flow rate is the amount of material flowing through closed pipeline or open channel in unit time. The material flowing through can be gas, liquid and solid. The cumulative flow rate is the amount of fluid flowing through closed pipeline or open channel in a certain time interval (one day, one week, one month, one year). Cumulative measurement of effective cross section. The cumulative flow can also be obtained by integrating instantaneous flow with time, so the instantaneous flow meter and cumulative flow meter can also be transformed into each other.