130 材料表面の非接触温度モニタリングへのレーザー超音波法の適用(非破壊評価とモニタリング2)

概要

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In many fields of engineering, there are growing demands for measuring surface temperature distribution of heated materials. In this work, application of laser ultrasound technique to non-contact surface temperature measurements of heated materials has been studied. A thick aluminum plate is heated and the surface acoustic wave and surface temperature are continuously monitored using a laser ultrasound system and an infrared camera, respectively. The temperature dependence of the surface wave velocity of the aluminum is then determined. It has been found that the temperature dependence is almost linear in the temperature range up to 230℃. This result could be used for ultrasonic measurements of surface temperature distribution of heated materials.
一般社団法人日本機械学会の論文
2007-11-16