半透明材料におけるスペクトル逆解析モデリングに基づく内部温度逆解析
Optics express
|December 19, 2025
まとめ
本研究は、挑戦的な半透明材料における非接触温度測定のためのスペクトル逆解析モデルを導入する。この新しい手法は、ノイズ下でも正確に内部温度分布をマッピングし、従来の赤外線温度測定法を上回る。
科学分野:
- 物理学
- 材料科学
- 熱力学
背景:
- 半透明材料における非接触温度測定は、光学特性と熱勾配のために困難である。
- 従来の赤外線温度測定法は複雑な媒体ではうまく機能せず、熱プロファイリングの精度を制限する。
研究 の 目的:
- 半透明多層材料における精密な非接触温度測定のための高度なスペクトル逆解析モデルを開発すること。
- 光学的不均一性および深さ依存熱勾配による制限を克服すること。
主な方法:
- 散乱行列とゆらぎ散逸定理に基づくスペクトル逆解析モデルを利用した。
- 高温逆解析のための焼きなまし法と局所アンサンブル平均化を統合した。
- 光学定数が異なる5層薄膜構造に対する数値シミュレーションを通じてモデルを検証した。
主要な成果:
- 多層材料における内部温度分布の高精度再構築を達成した。
- 乗法的均一ノイズ(0.5%-5%)下でロバストな性能を示し、5%ノイズで最大相対誤差は0.67%未満であった。
- 複雑な薄膜構造における温度分布の再構築に成功した。
結論:
- 提案されたスペクトル逆解析フレームワークは、困難な半透明材料における熱プロファイリングのための正確な非接触方法を提供する。
- このアプローチは、従来の赤外線温度測定法では不十分な複雑な媒体に適している。
- 材料科学および工学における非接触熱測定の重要な進歩を提供する。
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