浅析孔板流量计量程比

来源期刊：冶金自动化2010年第5期

论文作者：周方艮

文章页码：57 - 60

关键词：孔板； 差压流量计； 量程比

Key words：orifice plate； differential pressure flowmeter； range ratio

摘    要：分析过去孔板式差压流量计量程比受到限制的原因,以及现阶段随着微电子技术、传感器技术的发展和计算机技术对仪表的渗透,孔板式差压流量测量技术获得了一次飞跃,使测量的量程比达到10∶1。同时指出三种扩展量程比的方法,以及这些方法在上海梅山钢铁股份有限公司运用的具体实例。

Abstract: Limited cause of range ratio in orifice plate differential pressure flowmeter is introduced.With development of microelectronics and sensor technology,and infiltration of computer technology in instrument,measurement technology of orifice plate differential pressure flowmeter has got a leap,and range ratio has reached to 10∶1.Three spreading methods of range ratio are presented.Practical application examples of these methods in Shanghai Meishan Iron and Steel Co.,Ltd.are given.