目 录
1 范围······································,············,····································…… (1)
2 引用文献······,··························,··················································…… (1)
3 概述··························································································…… (1)
4 计量性能要求······························,·············································…… (1)
4.1几何尺寸及安装········································································…… (1)
4.2 扭矩 (力值)示值误差 ······························································…… (1)
4.3其它项目的示值误差··································································……(2)
4.4分析仪示值误差········································································……(2)
4.5 分析仪重复性···········································································…… (2)
4.6 分析仪响应时间········································································…… (3)
4.7 分析仪稳定性···········································································…… (3)
4.8电压变化影响···········································································……(3)
5 通用技术要求·············································································…… (3)
5.1 外观及标识··············································································…… (3)
5.2 工作正常性··········································································…… (4)
6 计量器具控制··············································································…… (4)
6.1 检定条件·················································································…… (4)
6.2 检定项目和检定方法··································································…… (6)
6.3检定结果处理···········································································……(12)
6.4 检定周期 ··············································································…… (12)
附录A 汽油车稳态加载污染物排放检测系统检定记录 ···························…… (13)
附录B 污染物气体分析仪检定系统原理图 ··················,·······················…… (18)
附录C 车载反拖及功率检定装置示意图 ·············································…… (19)
汽油车稳态加载污染物排放检测系统试行检定规程
范 围
本规程适用于各种类型的汽油车稳态加载污染物排放检测系统 (以下简称检测系
统)的首次检定、后续检定及使用中检验。
2 引用文献
DB 11/122-2000 汽油车稳态加载污染物排放标准
JJG 455-200()工作测力仪检定规程
3 概 述
检测系统是用于测量汽油车稳态加载污染物排放的专用计量设备,主要用于汽油车
稳态加载排放气体中CO, HC, COz, NO,仇五种气体含量的测定。
检测系统主要由以下各部分组成:滚筒机构、功率吸收单元 (PAU)、测速装置、
计时装置、机械惯性模拟装置、污染物气体分析仪 (分析仪)、环境状态测试单元、计
算机控制与数据处理单元。