机动车尾气遥感检测系统气体校准辅助装置的研制  

Development of Calibration Auxiliary Device for Remote Sensing Measurement System of Vehicle Exhaust

作　　者：金佩玉[1] 姚金玲 李丽英 JIN Peiyu;YAO Jinling;LI Liying(Anhui Institute of Metrology,Hefei 230001,China)

机构地区：[1]安徽省计量科学研究院,合肥230001

出　　处：《计量科学与技术》2022年第8期32-36,共5页Metrology Science and Technology

摘　　要：随着机动车保有量不断增加,尾气污染问题成为当下关注的重点,科学治理机动车尾气污染物的超标排放,加强机动车尾气检测至关重要。机动车尾气遥感检测系统结合了可调谐半导体激光吸收光谱(TDLAS)技术、紫外差分吸收光谱(DOAS)技术和计算机自动识别技术,可以在不影响车辆正常行驶的条件下,实现机动车行驶过程中尾气污染物浓度在线遥感检测。为了满足JJF 1835-2020《机动车尾气遥感检测系统校准规范》要求,研制了一种校准辅助装置,该装置配合标准气体,用于气体测量示值误差静态和动态的校准,取得了良好的效果,本文全面介绍了气体校准辅助装置的工作原理、装置组成和软硬件设计。With the increasing number of motor vehicles, exhaust pollution has become the focus of attention, and it is crucial to scientifically manage the excessive emissions of motor vehicle exhaust pollutants and strengthen motor vehicle exhaust detection. The remote sensing measurement system of vehicle exhaust combined Tunable Diode Laser Absorption Spectroscopy(TDLAS), Differential Optical Absorption Spectroscopy(DOAS), and automatic identification technology, which can realize online remote sensing measurement of exhaust pollutant concentration during the driving process of motor vehicles without affecting the normal driving conditions. To fulfill the requirements of JJF 1835-2020 “Calibration Specification for Remote Sensing Measurement Systems of Vehicle Exhaust”, a new auxiliary device for calibration has been developed, which is used for static and dynamic calibration of gas measurement indication error with standard gas and has achieved good results. This paper comprehensively introduced the working principle, device composition, and software and hardware design of the auxiliary device for gas calibration.

关 键 词：机动车 遥感检测 示值误差 校准 辅助装置 

分 类 号：X734.2[环境科学与工程—环境工程] X87