摘要
针状、片状规准仪是对水泥混凝土集料及建设用卵石、碎石中的4.75 mm~37.5 mm之间的针状和片状颗粒进行分级筛选的计量器具,广泛应用于建设工程试验室测量针状和片状颗粒的尺寸筛选。本文主要介绍了校准针状、片状规准仪的方法和测量结果的不确定度的评定。本文的方法使用了不同于校准规范中的标准器,为校准方法提供了更多可能性。
Needle and flake gauges are measuring instruments for grading and screening needle and flake particlesbetween 4.75 mm-37.5 mm in cement concrete aggregates and construction pebbles and crushed stones.They are widely used in measuring the size screening of needle and flake particles in construction engineering laboratories.This article mainly introduces the method of calibrating needle and flake gauges and the evaluation of uncertainty of measurement results.At the same time,The method in this paper uses a different standard devicefrom the calibration specification,which provides more possibilities for the calibration method.
作者
马超
马睿
杜一民
MA Chao;MA Rui;DU Yi-min(Liaoning Institute of Measurement,Shenyang 110004,China)
