| 入腔法校准辐射热流计入腔位置的确定 |
| Determination of the Location for Heat Flux Sensor Inside the Cavity Using In-Cavity Calibration Method |
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| 中文摘要: |
| 介绍了辐射热流计的校准方法，并详细说明了入腔法校准辐射热流计的装置和原理。校准是在黑体腔直径50 mm的钠管炉和高温黑体辐射源上进行的。所采用的热流计为水冷圆箔式热流计。建立了等效腔体模型用以计算有效发射率。理论计算和试验结果表明入腔最佳位置在热流计距黑体腔底面1倍黑体腔直径处。 |
| 英文摘要: |
| This paper introduces the methods of heat flux sensor calibration and gives detailed descriptions of in-cavity calibration instruments and principles. The calibration has been performed using a sodium heat pipe blackbody and a high temperature blackbody, both with 50-mm-diam cavities. Heat flux sensors used here are circular foil type and water-cooled. An equivalent cavity model has been established to calculate the effective emissivity. The computations and experimental results show that the optimum location for the sensor is at a distance of about one cavity diameter from the cavity bottom. |
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| 中文关键词: 热流 热流计 黑体腔 入腔法校准 有效发射率 |
| 英文关键词:heat flux heat flux sensor blackbody cavity in-cavity calibration effective emissivity |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2015.03.11 |
| 引用本文：董磊,蔡静,杨永军.入腔法校准辐射热流计入腔位置的确定[J].计测技术,2015,35(3):. |
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