Abstract
The information of temperature field distribution is significant for industrial applications because it can reflect the internal running state of industrial equipment and assist to develop control strategy and ensure safety in operation of industrial equipment. Ultrasonic thermometry is a kind of acoustic pyrometry and it has been evolving as a new temperature measurement technology for various environment. The principle of ultrasonic thermometry is based on the dependence of ultrasonic sound velocity on temperature. In this paper, a reliable method for two-dimensional temperature field distribution reconstruction via ultrasonic thermometry is investigated. The results of actual experiment demonstrate that the proposed reconstruction method possesses a relatively better information reflection of temperature field distribution and higher reconstruction accuracy than common reconstruction algorithm, the least square method.
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