Non-destractive three-dimensional temperature measurement using interferometric tomography

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560216
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Hokkaido University
• Principal Investigator: TOMIOKA Satoshi 北海道大学, 工学(系)研究科(研究院), 准教授 (40237110)
• Co-Investigator(Kenkyū-buntansha): NISHIYAMA Shusuke 北海道大学, 大学院工学研究院, 助教 (30333628)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 三次元非接触計測 / 温度分布 / トモグラフィー / 位相 / 入射方向可変干渉計 / 屈折率 / 位相アンラッピング / 重みつき再構成

Outline of Final Research Achievements

In order to measure nondestructive three-dimensional temperature distribution of heated gas, we have developed an incident angle variable interferometer. The interfergram from each incident angle is converted to phase image by newly developed phase unwrapping algorithms. The three-dimensional distribution is reconstructed by a computed tomography.
To demonstrate validity of this system, we have measured three-dimensional gas temperature distribution around candle flame. From a comparison with a result by using a thermocouple, we conclude that the developed measurement system can measure the nondestructive three-dimensional distribution successfully.

Free Research Field

計算科学