随着我国石油化学工业的迅速发展,盛装各种石油化工液态产品、具有椭圆形封头的卧式容器的用量也在不断增加。在生产中常常需要将液位的信号转化为容积数值直接显示出来,为此则必须找出液位和容积的函数关系式。本文导出“液位-容积”公式,作为基础理论在化工设备上的一个应用实例。 With the rapid development of China’s petrochemical industry, containing a variety of petrochemical liquid products, the amount of horizontal containers with oval head is also increasing. In production it is often necessary to convert the signal of the level to a volume value that is directly displayed, for which purpose a functional relationship between level and volume must be found. This paper derives the “liquid-volume” formula, as a basic theory in chemical equipment, an application example.