为了测量质量流量与液体量,很多情况下是采用活塞式质量流量检定装置。文献[1]中对装有机械式密度校正器的活塞式质量流量检定装置的误差进行了理论分析,还对其初步设计结构方案进行过论述。这篇文章发表后,在实验室内和室外用各种工作液体对该装置进行的试验研究表明,可以从计量学和使用观点 In order to measure the mass flow and the amount of liquid, in many cases the use of piston mass flow test device. In [1], the error of piston mass flow rate calibration device with mechanical density corrector is analyzed theoretically, and the preliminary design of the structure scheme is also discussed. After the article was published, experimental studies of this device with various working fluids both inside and outside the laboratory showed that it is possible to use the metrology and the usage point of view