HTG系统液位测量误差分析与修正

Error analysis and correction in level measurement of HTG system

本文首先对静压式油罐计量系统 (HTG)原理作了简单介绍 ,然后指出导致该方法液位测量误差偏大的主要原因是温度和压力 ,最后详细讨论了温度与压力各自对液位测量误差的影响 ,文末给出了修正公式 。

This paper gives a brief account of the principle of the HTG system and points out that the temperature and pressure are the trouble which cause a big error to the level measurement.The paper also decribes how they influence the error of the level measurement and in the end gives the modifing formulars,which are very important for understanding the phenomena of multi layer density in large scale oil tanks.