衡器载荷测量仪校准研究

Research on the Calibration of Load Measurement Apparatus of Weighing Instrument

一种专用质量比较仪的结构组成,并对其进行校准。利用质量比较仪,对衡器载荷测量仪进行校准和不确定度评定,校准结果测量仪误差不超过电子汽车衡最大允许误差1/3,且扩展不确定度与测量仪最大允许误差比值小于1/3,由此表明,通过ABA直接比较法能够进行测量仪的校准。

After the introduction of a special mass comparator,the calibration of the mass comparator were performed.The Load Measurement Apparatus of Weighing Instrument（LMA） was calibrated by the mass comparator at last and the uncertainty of the procedure was evaluated.The results show that the error of LMA is less then one third of the corresponding Maximum Permission Error（MPE） of electronic truck scale on each measuring point.And the expanded uncertainty is also less then one third of the corresponding MPE of the LMA on each measuring point.It comes to the conclusion that the LMA can be calibrated by the mass comparator through the ABA comparison method