We establish a single diode laser sensor system to obtain temperature and water concentration in CH4/air premixed flame.Line-of-sight properties are analyzed,but line-of-sight results are not path average values for t...We establish a single diode laser sensor system to obtain temperature and water concentration in CH4/air premixed flame.Line-of-sight properties are analyzed,but line-of-sight results are not path average values for temperature measurements.The measurements are performed on a flat burner based on scannedwavelength direct absorption spectroscopy using two adjacent water lines at 7153.75 and 7154.35 cm 1.Real-time results are acquired using a data acquisition card with a Labview data processing program.The standard uncertainties of the temperature and water concentration measurements are 2.3% and 5.1%,respectively.展开更多
以LF精炼炉的智能测温需求为背景,运用高温红外图像技术和西门子PLC设计一套智能测温装置,并对装置控制系统进行软硬件设计开发。采用模块化设计方法,利用Visual Studio 2017开发环境下的MFC框架开发了基于视觉的智能测温软件系统,优化...以LF精炼炉的智能测温需求为背景,运用高温红外图像技术和西门子PLC设计一套智能测温装置,并对装置控制系统进行软硬件设计开发。采用模块化设计方法,利用Visual Studio 2017开发环境下的MFC框架开发了基于视觉的智能测温软件系统,优化了精炼过程中的测温工序,同时系统的远程控制与图像可视化大大提高了作业效率,降低了测温成本。测试结果表明,该系统能够满足LF精炼炉智能测温的功能需求,系统运行稳定,人机交互效果良好,可视化程度高,具有很高的实用性,对钢铁冶金行业在LF精炼炉测温环节的自动化和智能化提供了参考。展开更多
海表温度是重要的环境特征指标。为了实时高精度测量海表皮温,中国海洋大学研制了一台海表测温辐射测量系统(The First Infrared Radiometer for measurements of Skin SST made by Ocean University of China,OUCFIRST,简称FIRST系统)...海表温度是重要的环境特征指标。为了实时高精度测量海表皮温,中国海洋大学研制了一台海表测温辐射测量系统(The First Infrared Radiometer for measurements of Skin SST made by Ocean University of China,OUCFIRST,简称FIRST系统)。FIRST系统使用热释电辐射传感器,测量海表、天空和内部标准黑体的辐射量,对测量的海表辐射进行实时校正,得到精确的海表辐射值,通过反演计算,得到高精度海表皮温。FIRST系统内部使用了可溯源的测温仪,可测量标准黑体温度,该系统采用了自容式设计,测温精度高且部署容易。FIRST系统参加了2016年在英国国家物理实验室(National Physical Laboratory)NPL进行的联合观测实验,在实验室测量了标准黑体,在室外湖面进行了实测,测量结果优于33mK,测量准确度位列各参测仪器的第二名。实验结果表明,FIRST系统具有较好的测量精度,可用于海表皮温的高精度测量。展开更多
基金supported by the State Key Laboratory of Laser Interaction with Matter under Grant No.SKL110905
文摘We establish a single diode laser sensor system to obtain temperature and water concentration in CH4/air premixed flame.Line-of-sight properties are analyzed,but line-of-sight results are not path average values for temperature measurements.The measurements are performed on a flat burner based on scannedwavelength direct absorption spectroscopy using two adjacent water lines at 7153.75 and 7154.35 cm 1.Real-time results are acquired using a data acquisition card with a Labview data processing program.The standard uncertainties of the temperature and water concentration measurements are 2.3% and 5.1%,respectively.
文摘以LF精炼炉的智能测温需求为背景,运用高温红外图像技术和西门子PLC设计一套智能测温装置,并对装置控制系统进行软硬件设计开发。采用模块化设计方法,利用Visual Studio 2017开发环境下的MFC框架开发了基于视觉的智能测温软件系统,优化了精炼过程中的测温工序,同时系统的远程控制与图像可视化大大提高了作业效率,降低了测温成本。测试结果表明,该系统能够满足LF精炼炉智能测温的功能需求,系统运行稳定,人机交互效果良好,可视化程度高,具有很高的实用性,对钢铁冶金行业在LF精炼炉测温环节的自动化和智能化提供了参考。
文摘海表温度是重要的环境特征指标。为了实时高精度测量海表皮温,中国海洋大学研制了一台海表测温辐射测量系统(The First Infrared Radiometer for measurements of Skin SST made by Ocean University of China,OUCFIRST,简称FIRST系统)。FIRST系统使用热释电辐射传感器,测量海表、天空和内部标准黑体的辐射量,对测量的海表辐射进行实时校正,得到精确的海表辐射值,通过反演计算,得到高精度海表皮温。FIRST系统内部使用了可溯源的测温仪,可测量标准黑体温度,该系统采用了自容式设计,测温精度高且部署容易。FIRST系统参加了2016年在英国国家物理实验室(National Physical Laboratory)NPL进行的联合观测实验,在实验室测量了标准黑体,在室外湖面进行了实测,测量结果优于33mK,测量准确度位列各参测仪器的第二名。实验结果表明,FIRST系统具有较好的测量精度,可用于海表皮温的高精度测量。
