Accuracy Verification on 2D Temperature Measurement Method Using CT-tunable Diode Laser Absorption Spectroscopy

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  • CT 半導体レーザ吸収法を用いた2 次元温度計測の精度検証
  • CT ハンドウタイ レーザ キュウシュウホウ オ モチイタ 2ジゲン オンド ケイソク ノ セイド ケンショウ

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2D temperature and concentration distribution plays an important role for the combustion structure and the combustor efficiency in engines, burners and so on. In this study, the theoretical and experimental research has been conducted in order to develop the noncontact and fast response 2D temperature and concentration distribution measurement method. The method is based on a computed tomography(CT) method using absorption spectra of water vapor at 1388nm. The CT tunable diode laser spectroscopy methods were applied to engine exhausts and burners to measure 2D temperature distributions to discuss the accuracy and the special resolution.

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