上图中的第一部分为：叶片绝热层剥落；第二部分为：涡轮叶片冷却腔阻塞；第三部分为：变电设备冷却腔阻塞；第四部分：绝热层厚度测量。
    参考文献：
    [1] T. Ahmed, B. Chaudhry and S. Shepard, Active Thermographic Inspection of Combustion Turbine Components [C], in Gas Turbine Materials Technology, Eds. P. Maziasz, I. Wright, W. Brindley, J.Stringer, C. O’Brien, ASM International, 1998, pp. 115-118.
    [2] Bharat B. Chaudhry, Hank Holmes, Sr., Steven M. Shepard, Tasdiq Ahmed, THERMOGRAPHIC QUALITY ASSURANCE OF TURBINE ENGINE COMPONENTS [C], International Joint Power Generation Conference, June 24-26, 2002.
    [3] TWI公司公开资料。