THERMAL BARRIER COATING DEBONDING DEFECTS DETECTION BASED ON INFRARED THERMAL WAVE TESTING TECHNOLOGY UNDER LINEAR FREQUENCY MODULATION HEAT EXITATION
作者: Yuanlin Liu Guojin Zhao Yongzhi Du Yang Zhang
刊名: Thermal Science, 2019, Vol.23 (3A/2019), pp.1607-1613
来源数据库: Society for Thermal Engineers of Serbia
DOI: https://doi.org/10.2298/TSCI180901230L
关键词: Infrared thermal waveThermal barrier coatingDebonding defectsLinear frequency modulation heat excitation
原始语种摘要: Thermal barrier coating debonding defects detection based on infrared thermal wave testing technology under linear frequency modulation heat excitation was studied. The principle the infrared thermal wave testing technology under linear frequency modulation was presented. The effects of different light source power and Chirp modulation frequency on signal-to-noise ratio were compared and analyzed. The results show that, defects can be more easily detected with the bigger power of light source, and the signal-to-noise ratio can be increased by using lower initial and termination frequencies.
全文获取路径: PDF下载  塞尔维亚热力工程师协会  (合作)
分享到:

×
关键词翻译
关键词翻译
  • thermal 热的
  • modulation 
  • light 
  • noise 噪声
  • barrier 堡坝
  • coating 覆盖层
  • infrared 红外线
  • source 
  • excitation 激发
  • technology 工艺