自由膨胀率试验仪校准方法探讨及其分析与研究

The Analysis and Research on Performance Impact and Calibration Method for Free Swelling Testers

介绍了自由膨胀率试验仪的工作原理和用途,建立了自由膨胀率试验仪校准结果的测量模型,分析了各不确定度分量主要来源,结合测量实例具体数据,对其合成不确定度进行分析评定,对各不确定度分量进行计算并得出合成标准不确定度和扩展不确定度,最终可得出该项目的校准测量能力,为交通检测部门检测松散土的特征提供有力的技术支撑。

This paper introduces the working principle and application of free swelling testers,establishes the measurement model of the calibration results of free swelling testers,analyzes the main sources of each uncertainty component,analyzes and evaluates the synthetic uncertainty combined with the concrete data of the measurement example,calculates each uncertainty component,obtains the composite standard uncertainty and extended uncertainty.Finally,the calibration and measurement ability of the project can be obtained.Overall,this paper can provide strong technical support for traffic detection department testing loose soil features.