| 温度外推在瞬态高温测试中的应用 |
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| 引用本文： | 郭海伟,郝晓剑,周汉昌,潘保武.温度外推在瞬态高温测试中的应用[J].仪表技术与传感器,2011(7). |
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| 作者姓名： | 郭海伟 郝晓剑 周汉昌 潘保武 |
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| 作者单位： | 中北大学仪器科学与动态测试教育部重点实验室,山西太原,030051 |
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| 基金项目： | 电子测量重点实验室基金项目(9140C1204040705) |
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| 摘 要： | 借助蓝宝石光纤温度传感器和多路数据采集卡,根据传热学的基本原理,建立了瞬态高温的黑体腔外推测试模型,并通过有限差分逼近外推法实现了对瞬态高温的测量.在此基础上,利用氢氧焰来模拟瞬态高温热源,得到了传感器和红外测温仪测得的黑体腔内外膜层温度变化曲线,从而验证了该外推模型及方法的正确性.
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| 关 键 词： | 蓝宝石光纤温度传感器 有限差分逼近法 温度外推 |
Application of Extrapolation in Measuring Transient High-surface Temperature |
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| GUO Hai-wei,HAO Xiao-jian,ZHOU Han-chang,PAN Bao-wu.Application of Extrapolation in Measuring Transient High-surface Temperature[J].Instrument Technique and Sensor,2011(7). |
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| Authors: | GUO Hai-wei HAO Xiao-jian ZHOU Han-chang PAN Bao-wu |
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| Affiliation: | GUO Hai-wei,HAO Xiao-jian,ZHOU Han-chang,PAN Bao-wu(Key Laboratory of Instrumentation Science&Dynamic Measurement(North University of China),Ministry of Education,Taiyuan 030051,China) |
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| Abstract: | A blackbody cavity transient high temperature extrapolation testing model was established,and the measurement for transient high temperature was achieved by finite difference approximation extrapolation method,with the help of sapphire fiber-optic temperature sensor and multi-channel data acquisition card,according to the fundmental principles of heat transfer.On this basis,by Oxy-hydrogen flame simulating the transient high-temperature heat source,the sensors and high-speed infrared thermometer are simulta... |
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| Keywords: | sapphire fiber-optic temperature sensor finite difference approximation method temperature extrapolation |
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