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流量计量是计量科学技术的组成部分之一,它与国民经济、国防建设、科学研究有密切的关系。流量计量仪表广泛应用于冶金、石油、化工、电力、水利等行业,对于贸易结算、工艺控制起着极其重要的作用。由于流量测量技术的复杂化,特别是在能源危机、工业生产自动化程度愈来愈高的当今时代,对流量仪表和流量测量技术提出更新更高的要求,流量计量的现况远不能满足生产的需要。目前流量仪表的品种、规格、准确度和可靠性尚不能满足生产要求,特别对腐蚀性流体、脏污流体、高粘性流体、多相流体、特大流量、微小流量等,有待发展有效的测量
Flow measurement is one of the components of measurement science and technology. It is closely related to the national economy, national defense construction and scientific research. Flow meters are widely used in metallurgy, petroleum, chemical, power, water conservancy and other industries, for trade settlement, process control plays an extremely important role. Due to the complexity of the flow measurement technology, especially in the current era of the energy crisis and the increasingly high degree of automation in industrial production, new and higher requirements are placed on the flow meter and the flow measurement technology. The current status of the flow measurement can not meet the needs of production need. At present, the variety, specification, accuracy and reliability of flow meters can not meet the production requirements, especially for corrosive fluid, dirty fluid, highly viscous fluid, multiphase fluid, extra large flow,