无论是质量法液体流量标准装置传递体积量流量计还是容积法液体流量标准装置传递质量流量计,均存在介质密度的测量问题,特别对于高准确度流量计介质密度的测量准确度对其计量性能的判定起到关键作用,文章就介质密度不同测量方法进行描述,并对不同方法进行分析比较,使用者可以选择适合本装置使用,并保证介质密度测量结果准确可靠的测量方法。研发出了一种全自动介质密度的测量方法和装置,该方法测量准确度高,数据稳定、可靠,在本所油流量标准装置上进行试验,得到了满意的结果。 Both the mass flow method standard volume flow volumetric flow meter or volumetric flow rate standard device mass flow meter delivery, there are medium density measurement problems, especially for high accuracy flowmeter medium density measurement accuracy of its measurement performance The determination of the media plays a key role. The article describes different measurement methods of media density, and analyzes and compares the different methods. The user can select the measurement method suitable for the device and ensure the accurate and reliable measurement of media density. Developed a fully automatic medium density measurement methods and devices, the method of measurement accuracy, data stability and reliability, the oil flow in the standard test apparatus, the satisfactory results were obtained.