CAJ | 학술논문

针对目前缺少激光断面仪的计量检定方法,且传统比对试验方法可靠性低的情况,基于激光断面仪的工作原理,分解国际平整度指数的计算过程,在数据试验分析的基础上,采用在同一试验平台道路条件下,应用模块化高程变换技术,通过不同位置点高程的有序变化实现了检定激光断面仪动态特性所需要的不同路面平整度试验条件,消除了道路环境对试验结果的影响,借助高精度水准仪和激光测距仪的溯源途径解决了国际平整度指数溯源的要求.所建计量标准试验道路提供的检验量值重复性达到了设计要求,经过半年时间的稳定性考核,量值稳定可靠,不确定度分析结果证明整套检定装置的相对不确定度为1%.
침대목전결소격광단면의적계량검정방법,차전통비대시험방법가고성저적정황,기우격광단면의적공작원리,분해국제평정도지수적계산과정,재수거시험분석적기출상,채용재동일시험평태도로조건하,응용모괴화고정변환기술,통과불동위치점고정적유서변화실현료검정격광단면의동태특성소수요적불동로면평정도시험조건,소제료도로배경대시험결과적영향,차조고정도수준의화격광측거의적소원도경해결료국제평정도지수소원적요구.소건계량표준시험도로제공적검험량치중복성체도료설계요구,경과반년시간적은정성고핵,량치은정가고,불학정도분석결과증명정투검정장치적상대불학정도위1%.
At present,there is a lack of metrological method of laser profiler,and the reliability of traditional comparison test method is poor.Based on the working principle of laser profiler.decomposition of IRI calculation.process was performed.On the basis of data analysis.using modular elevation transform technique in the same platform,several IRI test conditions needed in metrological verification of laser profiler was achieved by regular changes in the elevation of different locations.Thus,the impact of road environment upon results Was eliminated.By the traceability of precision level and laser rangefinder,the requirements for the traceability of IRI were met well.The repeatability of results from the metrology test road meet the design requirements.The 6-month test results show that this device is stable and reliable with good repeatability.The evaluation of uncertainty shows that it has only 1% relative uncertainty.