More than Meets the Eye – Infrared Cameras in Open-Ended University Thermodynamics Labs
More than Meets the Eye – Infrared Cameras in Open-Ended University Thermodynamics Labs
复制标题
不仅仅是眼睛所看到的——开放式大学热力学实验室中的红外相机
DOI：
10.1119/1.4967889
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Staffan Andersson
中科院分区：
文献类型：
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作者：
E. Melander;Jesper Haglund;M. Weiszflog;Staffan Andersson
教育研究发现，学生在理解热科学方面存在挑战。物理学本科学生很难区分基本的热概念，如热量、温度和热力学能。工科学生已经发现很难掌握表面发射率作为热材料的性质。学生在热科学方面面临挑战的一个潜在来源是缺乏使用传统测量设备以直观的方式可视化能量传递的机会。热力学实验室通常依赖于使用温度计（检测热传导）或高温计（检测热辐射）对温度进行点测量。相比之下，红外（IR）相机的热成像提供了实时的整体图像。在这里，我们提供了一些关于红外相机及其在教育中的应用的背景，并总结了我们在课程中使用的五个定性调查。
Educational research has found that students have challenges understanding thermal science. Undergraduate physics students have difficulties differentiating basic thermal concepts, such as heat, temperature, and internal energy. Engineering students have been found to have difficulties grasping surface emissivity as a thermal material property. One potential source of students’ challenges with thermal science is the lack of opportunity to visualize energy transfer in intuitive ways with traditional measurement equipment. Thermodynamics laboratories have typically depended on point measures of temperature by use of thermometers (detecting heat conduction) or pyrometers (detecting heat radiation). In contrast, thermal imaging by means of an infrared (IR) camera provides a real-time, holistic image. Here we provide some background on IR cameras and their uses in education, and summarize five qualitative investigations that we have used in our courses.