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在石油化工等工矿企业里,使用着大量的容积式流量计,如罗茨流量计、椭圆齿轮流量计等。这类流量计,据其测量原理和结构特点,在机加工等制造技术较强的今天,比较容易制造出精度较高的流量计。但是由于测量介质不同,所造成的误差也不一样。如用水实测标定的流量计,去测量重油的流量,其测量值要上升10％左右。这主要是被测介质的粘度不同所致。容积式流量计的测量误差与粘度有关,
In the petrochemical and other industrial and mining enterprises, the use of a large number of volumetric flowmeter, such as Roots flowmeter, oval gear flowmeter. This type of flowmeter, according to its measurement principle and structural characteristics, machining and other manufacturing technologies today, it is easier to create a higher accuracy flowmeter. However, due to the different measuring medium, the error caused is not the same. Such as water measured calibration of the flow meter, to measure the flow of heavy oil, the measured value to rise about 10%. This is mainly due to the different viscosity of the measured medium. Volumetric flowmeter measurement error and viscosity,