中国科学院云南天文台机构知识库

测温准确度较低是制约红外测温在精准测温领域应用的重要因素。目前红外测温的主要测量对象是低反射率物体，简称为低反体。针对传统红外装置在低反体精准测温方面的不足，采用反射器替换传统红外装置的镜头制成反射器红外装置，以提高其对低反体的测温性能。计算和测试结果显示，F数为1的红外镜头被替换为反射器后，红外装置对低反体的辐射收集能力和测温准确度提高约4倍。此外，低反体充满视场后，反射器红外装置的温度测量结果与测量距离无关。反射器红外装置有望用于科研和工业领域的高精度红外测温。

The low accuracy of temperature measurements is a significant factor that restricts the application of infrared temperature measurements in precise temperature measurement fields. Presently, the primary objects for infrared temperature measurement are those with low reflectivity, referred to as low-reflectivity objects. To address the deficiencies of conventional infrared devices, a reflector infrared device was developed by replacing the lens of a conventional infrared device with a reflector, thereby enhancing its temperature measurement performance on low-reflectivity objects. Calculations and experimental results indicated that, after replacing the F/1 infrared lens with a reflector, the radiation collection capability and temperature measurement accuracy of the infrared device for low-reflectivity objects improved by approximately four times. Furthermore, when the field of view was filled with a low-reflectivity object, the temperature measurement results of the reflector-infrared device were independent of measurement distance. Infrared reflector devices are promising candidates for high-precision infrared temperature measurements in both scientific research and industrial applications.