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。
In order to realize contactless pavement texture depth metrological traceability, promote accu- racy of pavement texture depth measurement and reliability of pavement anti slide performance evalua- tion, the paper adopted high precision laser sensor as the primary standard, analysed seientifiealness and rationality of static measurement instead of dynamic measurement by use of the relative movement theo- ry, and solved the problem that measured object of texture depth can not be copied. On this basis, ana- lysing hardware constitution and discussing some technology problems, the paper put forward a set of hardware device constructed by standard texture disc, high precision laser sensor and drive, and speed matching unit, and evaluated the measurement uncertainty by data. The research results show that by use of the proposal method, the uncertainty of reiteration value is 0.3%, and the tested pavement tex ture depth measured by laser texture depth device is 0.93 mm, which are consistent with the results by use of sand patch method. The proposed method provides effective way for improving the relialility of e- valuation on pavement anti slide performance. 6 tabs, 7 figs, 17 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第6期70-78,共9页
Journal of Chang’an University(Natural Science Edition)
基金
交通运输部计量质量研究项目(2012 318 223 250)
关键词
道路工程
路面抗滑性能
构造深度
非接触式
量值溯源
road engineering
pavement anti-slide performance
texture depth
contactless
me-trological traceability
