底盘测功机校准装置动态滑行时间和静态速度校准方法探讨  

Discussion on Calibration Method of Dynamic Glide Time and Static Speed of Chassis Dynamometer Calibration Device

作　　者：黄徐瑞晗 张宇 付欣艳[1] 王菊凤[1] 廖蔚松 韩锋[1] HUANG Xuruihan;ZHANG Yu;FU Xinyan;WANG Jufeng;LIAO Weisong;HAN Feng

机构地区：[1]贵州省计量测试院,贵州贵阳550003

出　　处：《计量与测试技术》2021年第8期64-66,共3页Metrology & Measurement Technique

基　　金：贵州省科技计划(黔科合支撑[2019]2881号)。

摘　　要：汽车排气污染物检测用底盘测功机校准装置是用于校准测功机,目前汽车排气污染物检测用底盘测功机校准装置的国家计量技术规范还尚未制定,故针对其静态速度和动态滑行时间2个关键参数的校准方法进行探讨,对测功机校准装置进行计量校准可有效保证其量值的准确可靠。结果表明,静态速度示值误差不确定度优于1.0×10^(-4)(k=2);动态滑行时间示值误差不确定度优于2.0ms(k=2),则该校准方法能为测量人员提供参考。The chassis dynamometer calibration device for automobile exhaust pollutant detection is a device used to calibrate dynamometer.At present,the national metrology technical specification for the calibration device of the chassis dynamometer for the detection of automobile exhaust pollutants has not been formulated.The calibration method for the two key parameters of static speed and dynamic glide time is discussed.The measurement calibration of the dynamometer calibration device can effectively ensure the accuracy and reliability of its measurement.The results show that the uncertainty of the static speed indication error is better than 1.0×10^(-4)(k=2);the dynamic glide time indication error uncertainty is better than 2.0 ms(k=2).This calibration method can be used for measuring personnel for reference.

关 键 词：测功机校准装置 静态速度 动态滑行时间 

分 类 号：TB9[一般工业技术—计量学]