<紀要論文>
超音波CTによる物体内部温度の非接触測定 : 第2報:数値シュミレーションと実験

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概要 A numerical simulation and experiments are carried out for a noncontact method to measure internal temperature distribution of a solid using ultrasonic computed tomography (CT). The method is based on... the fact that the sound velocity in a material depends on its temperature. 'Filtered Back Projection' is found to be the most effective algorithm for the reconstruction. To obtain an accurate temperature distribution, it is necessary to measure the sound propagation time with high resolution such as 1ns. In experiment, are measured the temperature distributions in a concentric cylinder with 40mm outer diameter which is made of agar-gel and heated along center line with 0.1mm dia. platinum wire heater. It is confirmed that the method could measure the temperature distribution inside the agar-gel within an error of 0.1℃, except for the region very vicinity of the platinum wire.続きを見る

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登録日 2009.04.22
更新日 2017.05.10