Direct <i>in-situ</i> temperature measurement for lamp-based heating device

Despite a wide variety of its practical applications, handiness, and cost-effectiveness, the advance of lamp-based heating devices is obstructed by one technical difficulty in measuring the temperature on a heated material. This difficulty originates in the combination of a polychromatic light source and a radiation thermometer that determines temperature from radiation (i.e. light). A new system developed in this study overcomes this intrinsic difficulty by measuring exclusively the radiation from the heated material, allowing us to perform the direct and in-situ measurement of temperature in a light-based heating device (an arc image furnace). Test measurements demonstrated the reliability of temperature measurement using the developed system as well as its promising potential for the determination of emissivity at high temperature particularly in the infrared region.尽管基于灯源的加热装置拥有多样的实际应用场景、出色的操作便捷性与成本效益优势，但其发展却受限于一项针对被加热材料的温度测量技术难题。该难题源于多色光源与辐射测温仪的组合架构——这类测温仪通过辐射（即光线）来计算目标温度。本研究开发的全新系统仅采集被加热材料的辐射信号，从而攻克了这一固有难题，可实现灯源加热装置（弧像炉）内温度的直接原位测量。测试验证结果表明，该系统的测温结果具备可靠性，同时展现出其在高温环境下（尤其红外波段）测定发射率的良好应用潜力。