液位测量是指对开口容器或密封容器中液体介质液面的高低的测量。以前,这种测量仪表没有得到应有的重视,但随着设备规模的扩大和集中管理、控制的需要,特别是电子计算机进入生产管理后,液位仪表就显得日益重要了。测量液位有二个目的,一种是对液位测量的绝对值要求准确,借以确定待测容器中的原料、辅料、半成品或者成品的数量,这是用液 Level measurement refers to the open container or sealed container liquid level measurement of the liquid level. In the past, such measuring instruments did not receive the attention they deserved. However, with the expansion of equipment and centralized management, the need for control, especially after the entry of electronic computers into production management, the level gauges became increasingly important. Measuring the liquid level has two purposes, one is the absolute value of the liquid level measurement accuracy requirements, in order to determine the container to be tested of raw materials, auxiliary materials, semi-finished products or the number of finished products, which is the use of liquid