检定振动管式液体密度计的几点认识

本文介绍振动管式液体密度计(以下简称密度计)的结构、工作原理,同时对影响密度计准确计量的主要因素(稳定性和重复性、温度修正系数和内壁结垢)加以分析,为科学正确地使用密度计提供一种技术借鉴.

This article introduces the construction and working principle of the fluid density meter with shock tube (the following is called densitometer for short). At the same time. the article analyses the primary factors (stability and repeatability, temperature compensation factor and internal wall encrust-ment) that affect accurate metering, providing a technical use for reference that makes use of densitometer scientifically.