Abstract
As the development of infrared temperature measurement technology, the research of the surface temperature monitoring system of rotary kiln based on infrared scanning has attracted the attention of experts in related fields. However, the non-contact characteristics of infrared bring many irresistible factors to the temperature measurement accuracy of rotary kiln, one of which cannot be ignored is the ambient temperature. In order to ensure the accuracy and stability of the system in temperature monitoring, the current research focuses on analyzing the influence of ambient temperature and establish a reasonable and effective temperature compensation model. In this paper, we analyze the influence of ambient temperature on temperature measurement in rotary kiln is analyzed based on the components of radiation received by infrared detector. The radiation received by infrared detector includes target radiation, reflection of ambient radiation and atmospheric radiation. It is found that the environmental temperature mainly affects the reflective radiation and atmospheric radiation of the environment, which cause the accuracy of temperature measurement drop. Therefore, this paper analysis the influence of ambient temperature on these two parts, and we put forward a dynamic temperature compensation model Based on nonuniform temperature field change, which improves the accuracy of temperature measurement by 5 percentage points.
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