车货外廓检测仪计量标准装置及定值方法研究  

Research on measurement standard device and fixed value method of vehicle and cargo profile detector

作　　者：王义旭 孙铭 胡孝望[2] 谭显峰 WANG Yixu;SUN Ming;HU Xiaowang;TAN Xianfeng(Research Institute of Highway Ministry of Transport,Beijing 100088,China;Jiangxi Ganyue Expressway Co.,Ltd.,Nanchang 330096,China;Jiangxi Province Traffic Construction Engineering Quality Supervision Administration,Nanchang 330096,China)

机构地区：[1]交通运输部公路科学研究所,北京100088 [2]江西赣粤高速公路股份有限公司,江西南昌330096 [3]江西省交通建设工程质量监督管理局,江西南昌330096

出　　处：《中国测试》2024年第S2期141-147,共7页China Measurement & Test

基　　金：江西省交通运输厅科技项目(2021X0012);交通强国试点项目(QG2021-4-20-2)

摘　　要：针对目前高速公路出入口车货外廓尺寸检测设备缺乏校准装置的问题,采用辅助杆与实际车辆相结合的方式,研制一套新型车货外廓尺寸检测仪计量标准装置,可实现对车货总长度、车货总宽度和车货总高度的模拟,车货外廓尺寸变化范围分别为:16.9~18.8m、2.5~4.0m和4.0~4.9m,可模拟最小尺寸变化量不大于2mm。提出分段组合计量的模拟车货外廓尺寸计算模型,建立辅助杆倾角与模拟外廓尺寸的相关关系。使用激光跟踪仪对该装置模拟的9种宽度车货外廓尺寸,16种长度外廓尺寸以及5种高度车货外廓尺寸进行定值,最大允许误差优于±2mm,开展不确定度评定,测量不确定度不超过1mm。In view of the lack of calibration device for the detection equipment of vehicle and cargo outline size at the entrance and exit of expressway,a new type of measurement standard device for vehicle and cargo outline size detector is developed by combining auxiliary rod with actual vehicle,which can realize the simulation of total length,total width and total height of vehicle and cargo.The variation range of vehicle and cargo outline size is 16.9~18.8 m,2.5~4.0m and 4.0~4.9m respectively,and the minimum size variation can be simulated not more than 2mm.The calculation model of the simulated vehicle outline size of the segmented combined measurement is proposed,and the correlation between the inclination angle of the auxiliary rod and the simulated outline size is established.The laser tracker is used to determine the 9 widths,16 lengths and 5 middle heights of the vehicle and cargo outline dimensions simulated by the device.The maximum allowable error is better than±2mm,and the uncertainty evaluation is carried out.The measurement uncertainty does not exceed 1mm.

关 键 词：计量学 超限 外廓尺寸 计量标准装置 

分 类 号：TB9[一般工业技术—计量学] U492.32[机械工程—测试计量技术及仪器]