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本文介绍了从气泡装置到核辐射仪表等各种型式的物位检测装置,阐述了它们是如何工作以及适用于何种场合,同时还说明它们能用于点检测还是连续检测。检测和控制容器中的物位是一个普遍遇到的问题,如许多工业部门从工艺过程直到包装和废物处理所必需,其对象包括液体、悬浮液、粉末和大块粒状等等各种物质。物位的检测涉及到传感装置与一定形状容器中物质成份的相互作用。由于存在种种测量
This article describes various types of level detection devices, ranging from bubble devices to nuclear radiation instrumentation, describes how they work and where they are suitable, and whether they can be used for point or continuous detection. Detecting and controlling levels in containers is a commonly encountered problem, as many industries require everything from processing through packaging and waste disposal to liquids, suspensions, powders and bulk pellets. The detection of the level involves the interaction of the sensing device with the material contents of a shaped container. Due to the variety of measurements