非接触式路面构造深度量值溯源技术

发布时间：2019-03-17 18:12

【摘要】：为了实现非接触式构造深度量值溯源,提升路面构造深度测量结果准确性及路面抗滑性能评价可靠性,采用高精度激光测距传感器作为主标准器,利用相对运动原理,从理论分析了用静态测量代替动态测量的科学合理性,克服了构造深度测量对象无法复制的难题。并在此基础上,从分析硬件组成和论述关键技术问题两方面,提出了一套由构造深度标准盘、高精度激光传感器和位移驱动及速度匹配装置3个核心部件组成的硬件装置,并通过实测数据评价了其不确定度。分析结果表明:应用提出的方法,复现量值的不确定度为0.3%,对激光构造深度仪进行了检验后,检测试验道路构造的深度为0.93mm,与应用铺砂法的测量结果一致。提出的方法为提高路面抗滑性能的可靠性评价提供了有效途径。
[Abstract]:In order to realize the traceability of non-contact structural depth value and to improve the accuracy of pavement structural depth measurement and the reliability of pavement anti-skid evaluation, a high-precision laser ranging sensor is used as the main standard and the relative motion principle is used. The scientific rationality of using static measurement instead of dynamic measurement is analyzed theoretically, which overcomes the difficult problem that the objects of depth measurement can not be duplicated. On this basis, from the analysis of hardware composition and the discussion of the key technical issues, a set of hardware devices composed of three core components, namely, structural depth standard disk, high precision laser sensor, displacement drive and velocity matching device, is proposed. The uncertainty is evaluated by the measured data. The analysis results show that the uncertainty of the reoccurrence value is 0.3%. After checking the laser structural depth meter, the depth of the road structure is 0.93 mm, which is consistent with the measurement result by sand paving method. The proposed method provides an effective way to improve the reliability evaluation of pavement anti-skid performance.
【作者单位】：交通运输部公路科学研究院;
【基金】：交通运输部计量质量研究项目(2012 318 223 250)
【分类号】：U416.2

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