A method for improving temperature measurement accuracy on an infrared thermometer for the ambient temperature field

作者：Shuanglong Cui, Bojun Sun, Xiaogang Sun · 发表于：Review of Scientific Instruments · 年份：2020 · DOI：10.1063/1.5121214 · 被引用次数：29 · 研究领域：Calibration and Measurement Techniques、Advanced Sensor Technologies Research、Thermography and Photoacoustic Techniques

In order to improve the accuracy of an infrared thermometer, the main uncertainty sources of the system are analyzed and a compensation function is established on the basis of these corrections. The verification experiments are carried out by using a self-developed infrared thermometer and a blackbody. The experimental results indicate that the compensation function can reduce the infrared thermometer expanded uncertainty from ±3.6 °C to ±1.9 °C in the temperature range of -40 °C to 60 °C. This method can effectively improve the temperature measurement accuracy of an ambient temperature infrared thermometer in its measurement range.