工作玻璃浮计示值误差的测量不确定度

Glass Float Gauge Measurements Error of Uncertainty

依据《工作玻璃浮计》（JJG 42-2011）采用直接比较法，即将标准浮计和工作浮计同时浸入同一检定液中，直接比较它们标尺的示值，从而得到被检工作浮计的示值修正值。此次不确定度评定选择测量范围为650～1500 kg/m3，分度值为0.5 kg/m3的密度计组，测量范围为0%～100%.用分度值为0.2%的酒精计和测量范围为0～40 Bh、分度值为0.1 Bh的波美计作为建立该装置时测量不确定度的评定对象。

According to“work glass hydrometers”（JJG 42-2011）using the direct comparison method, the upcoming standard float floating meter gauge and work simultaneously immersed in the same test solution, a direct comparison of their ruler showing the value, resulting in total were seized floating work the value correction value. The Uncertainty Evaluation select measurement range of 650~1 500 kg/m3, indexing is 0.5 kg/m3 density gauge group, the measurement range of 0%to 100%. Use indexing is 0.2%alcohol count and a measurement range of 0~40 Bh, indexing is 0.1 Bh Baume meter measurement uncertainty evaluation to establish the device as an object.