Bae Ji Yong, Choi Won, Hong Suk-Ju, Kim Sangyeon, Kim Eungchan, Lee Chang-Hyup, Han Yun-Hyeok, Hur Hwan, Lee Kye-Sung, Chang Ki Soo, Kim Geon-Hee, Kim Ghiseok
Division of Scientific Instrumentation and Management, Korea Basic Science Institute, 169-148 Gwahak-ro, Yuseong-gu, Daejeon 34133, Korea.
Department of Rural Systems Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
Sensors (Basel). 2020 Oct 15;20(20):5836. doi: 10.3390/s20205836.
In this study, a portable and large-area blackbody system was developed following a series of processes including design, computational analysis, fabrication, and experimental analysis and evaluation. The blackbody system was designed to be lightweight (5 kg), and its temperature could exceed the ambient temperature by up to 15 °C under operation. A carbon-fiber-based heat source was used to achieve a uniform temperature distribution. A heat shield fabricated from an insulation material was embedded at the opposite side of the heating element to minimize heat loss. A prototype of the blackbody system was fabricated based on the design and transient coupled electro-thermal simulation results. The operation performance of this system, such as the thermal response, signal transfer function, and noise equivalent temperature difference, was evaluated by employing an infrared imaging system. In addition, emissivity was measured during operation. The results of this study show that the developed portable and large-area blackbody system can be expected to serve as a reliable reference source for the calibration of aerial infrared images for the application of aerial infrared techniques to remote sensing.
在本研究中，通过包括设计、计算分析、制造以及实验分析与评估在内的一系列流程，开发了一种便携式大面积黑体系统。该黑体系统设计得很轻便（5千克），在运行时其温度可比环境温度高出多达15摄氏度。使用基于碳纤维的热源来实现均匀的温度分布。由绝缘材料制成的隔热罩嵌入在加热元件的对面，以尽量减少热损失。基于该设计和瞬态耦合电热模拟结果制造了黑体系统的原型。通过使用红外成像系统评估了该系统的运行性能，如热响应、信号传递函数和噪声等效温差。此外，在运行期间测量了发射率。本研究结果表明，所开发的便携式大面积黑体系统有望成为用于航空红外图像校准的可靠参考源，以便将航空红外技术应用于遥感。
