Abstract：High temperature large forging is covered with a thick oxide during forging. It leads to a big measurement data error. In this paper, a method of measuring temperature based on infrared spectroscopy is presented. It can effectively eliminate the influence of surface oxide on the measurement of temperature. The method can measure the surface temperature and emissivity of the oxide directly using the infrared spectrum. The infrared spectrum is radiated from surface oxide of forging. Then it can derive the real temperature of hot forging covered with the oxide using the heat exchange equation. In order to greatly restrain interference spectroscopy through included in the received infrared radiation spectrum, three interference filter system was proposed, and a group of optimal gap parameter values using spectral simulation were obtained. The precision of temperature measurement was improved. The experimental results show that the method can accurately measure the surface temperature of high temperature forging covered with oxide. It meets the requirements of measurement accuracy, and the temperature measurement method is feasible according to the experiment result.
张玉存，齐艳德*，付献斌 . 基于红外光谱的含氧化皮热态锻件温度检测方法[J]. 光谱学与光谱分析, 2012, 32(05): 1241-1246.
ZHANG Yu-cun, QI Yan-de*, FU Xian-bin. A Method of Temperature Measurement for Hot Forging with Surface Oxide Based on Infrared Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(05): 1241-1246.
