基于大气压力补偿的卷烟吸阻检测仪器校准方法  

Calibration method for cigarette draw resistance tester based on atmospheric pressure compensation

作　　者：王瀚乐 杨荣超[1] 张鹏飞[1] 史占东 宁英豪 于千源 曾波[1] 张勍[1] 崔廷 苗芊[1] WANG Hanle;YANG Rongchao;ZHANG Pengfei;SHI Zhandong;NING Yinghao;YU Qianyuan;ZENG Bo;ZHANG Qing;CUI Ting;MIAO Qian(Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China;Technology Center,China Tobacco Henan Industrial Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]中国烟草总公司郑州烟草研究院,郑州450001 [2]河南中烟工业有限责任公司技术中心,郑州市450000

出　　处：《烟草科技》2024年第6期85-91,共7页Tobacco Science & Technology

基　　金：中国烟草总公司重点研发项目“卷烟关键物理性能检测设备远程计量技术研究与应用”(110202202039)。

摘　　要：为提高同一卷烟样品在不同大气压力(800~992 hPa)环境下吸阻测量结果的一致性和准确性,分析了卷烟吸阻检测仪器校准过程中大气压力对标准恒流孔(CFO)入口端和吸阻标准棒输出端气体体积流量的影响,建立了一种基于大气压力补偿的吸阻检测仪校准方法,并基于数据拟合确定方法中校准模型的参数;利用6支不同规格吸阻标准棒,分别采用校准模型和两点校准法对不同大气压力下获得的吸阻测量值进行对比。结果表明:①大气压力对吸阻检测仪测量结果的影响可以通过测量校准过程中大气压力P与吸阻标准棒实际压降PD进行修正补偿;②CFO入口端气体体积流量与大气压力基本满足二次函数关系;③与两点校准法相比,采用校准模型在不同大气压力下获得的吸阻测量结果更接近标准压降(平均相对误差<0.15%)且一致性更高(变异系数<0.05%)。该方法可为提高吸阻检测仪测量结果的准确度提供参考。In order to promote the consistency and accuracy of the draw resistance of the same cigarette sample measured at different atmospheric pressures(800-992 hPa),the effects of atmospheric pressure on the air volume flows through the inlet end of the critical flow orifice(CFO)and the outlet end of the draw resistance standard during the calibration process of the cigarette draw resistance tester were analyzed.A calibration method for the draw resistance tester was established based on atmospheric pressure compensation,and the parameters of the model in the method were determined based on data fitting.The calibration model and the two-point calibration method were used to obtain the measured values of six draw resistance standards of different specifications under different atmospheric pressures.The results showed that:1)The effect of atmospheric pressure on the measurement results of the draw resistance tester could be compensated by correcting the atmospheric pressure P and the actual pressure drop PD of the draw resistance standard in the measurement calibration process.2)The air volume flow through the inlet end of CFO and the atmospheric pressure basically complied with the quadratic function relationship.3)Compared with the two-point calibration method,the draw resistance obtained with the calibration model under different atmospheric pressures was more approximate to the standard pressure drop value(average relative error<0.15%)and more consistent(coefficient of variation<0.05%).This method provides a reference for improving the accuracy of draw resistance tester measurement results.

关 键 词：卷烟 大气压力 吸阻检测仪器 校准模型 标准恒流孔 吸阻标准棒 

分 类 号：TS439.2[农业科学—烟草工业]