液压叠加式力标准机力值重复性、示值误差和长期稳定性观测与思考

Observations and reflections of hydraulic force standard machine force repeatability, showing error and long-term stability

文章以500k N液压方式叠加机作为验证机和研究平台,根据其力值重复性、示值误差和长期稳定性指标优于0.0086%(突破规程0.03级的极限,挑战现有理论模式)的检测数据,评估其不确定度,指出现检定规程存在的问题,坚持以0.01%精度为深入研究的切入点,寻找减小不确定度分量的方法,提出完善高精度叠加机计量传递链的部分改进思路。

Taking 500 k N hydraulic superimposed machine as demonstrator and research platform.Repeatability according to their ability, showing error and long-term stability indicators than 0.0086%（Breakthrough procedure.03 limit, to challenge existing theoretical models） test data to evaluate the uncertainty, referring to the problems appear verification procedures, adhere to the accuracy of 0.01% of the starting point for further research, looking to reduce the uncertainty of component method is proposed to improve part-precision metering machine overlay transport chain improvement ideas.