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Laser & Optoelectronics Progress, Volume. 55, Issue 6, 061101(2018)

Terahertz Nondestructive Detection Method of Ceramic Matrix Composites

Tiejun Li1,2、1; 2; , Yue Sun1、1; , Guifang Shao、3*; *; , Weiren Shi1、1; , Jianjun Liu4、4; , and Shihan Yan5、5;
Author Affiliations
  • 1 College of Automation, Chongqing University, Chongqing 400044, China
  • 2 College of Information Engineering, Jimei University, Xiamen, Fujian 361021, China
  • 4 School of Electronic Engineering, Jiujiang University, Jiujiang, Jiangxi 130061, China
  • 5 Research Center of THz Technology, Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences, Chongqing 400714, China
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    Figures&Tables (13)
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    References (24)
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    Figures & Tables(13)
    API T-Ray 5000 THz transmission time domain spectral detection system. (a) Schematic; (b) physical map

    Fig. 1. API T-Ray 5000 THz transmission time domain spectral detection system. (a) Schematic; (b) physical map

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    Flow chart of THz nondestructive detection method based on multi-modes imaging and SIFT feature clustering

    Fig. 2. Flow chart of THz nondestructive detection method based on multi-modes imaging and SIFT feature clustering

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    Transmission spectra of samples. (a) Time domain; (b) frequency domain

    Fig. 3. Transmission spectra of samples. (a) Time domain; (b) frequency domain

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    Comparison among THz imaging results of Al2O3 sample under various imaging modes. (a) Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.20 THz imaging; (f) 0.34 THz imaging; (g) 0.76 THz imaging; (h) 1.30 THz imaging

    Fig. 4. Comparison among THz imaging results of Al2O3 sample under various imaging modes. (a) Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.20 THz imaging; (f) 0.34 THz imaging; (g) 0.76 THz imaging; (h) 1.30 THz imaging

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    Comparison among THz imaging results of AlN sample under various imaging modes. (a) Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.36 THz imaging; (f) 0.83 THz imaging; (g) 1.48 THz imaging; (h) 1.80 THz imaging

    Fig. 5. Comparison among THz imaging results of AlN sample under various imaging modes. (a) Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.36 THz imaging; (f) 0.83 THz imaging; (g) 1.48 THz imaging; (h) 1.80 THz imaging

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    Comparison among THz imaging results of BeO sample under various imaging modes. (a) Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.36 THz imaging; (f) 0.67 THz imaging; (g) 1.48 THz imaging; (h) 1.82 THz imaging

    Fig. 6. Comparison among THz imaging results of BeO sample under various imaging modes. (a) Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.36 THz imaging; (f) 0.67 THz imaging; (g) 1.48 THz imaging; (h) 1.82 THz imaging

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    Comparison among THz imaging results of ZrO2 sample under various imaging modes. (a)Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.24 THz imaging; (f) 0.29 THz imaging; (g) 0.37 THz imaging; (h) 0.46 THz imaging

    Fig. 7. Comparison among THz imaging results of ZrO2 sample under various imaging modes. (a)Optical images; (b) imaging from API system; (c) peak-peak value imaging; (d) average value imaging; (e) 0.24 THz imaging; (f) 0.29 THz imaging; (g) 0.37 THz imaging; (h) 0.46 THz imaging

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    Representative THz images of Al3O2 sample at different frequencies. (a) 0.86562 THz; (b) 0.88125 THz; (c) 0.91562 THz; (d) 0.85 THz; (e) 0.85312 THz; (f) 0.91875 THz; (g) 0.88437 THz; (h) 0.96875 THz

    Fig. 8. Representative THz images of Al3O2 sample at different frequencies. (a) 0.86562 THz; (b) 0.88125 THz; (c) 0.91562 THz; (d) 0.85 THz; (e) 0.85312 THz; (f) 0.91875 THz; (g) 0.88437 THz; (h) 0.96875 THz

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    Representative THz images of AlN sample at different frequencies. (a) 1.4844 THz; (b) 1.4969 THz; (c) 1.5 THz; (d) 1.5937 THz; (e) 1.4781 THz; (f) 1.5906 THz; (g) 1.3375 THz; (h) 1.1687 THz

    Fig. 9. Representative THz images of AlN sample at different frequencies. (a) 1.4844 THz; (b) 1.4969 THz; (c) 1.5 THz; (d) 1.5937 THz; (e) 1.4781 THz; (f) 1.5906 THz; (g) 1.3375 THz; (h) 1.1687 THz

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    Representative THz images of BeO sample at different frequencies. (a) 1.4781 THz; (b) 1.4719 THz; (c) 1.1969 THz; (d) 1.1937 THz; (e) 1.475 THz; (f) 1.1875 THz; (g) 1.4656 THz; (h) 1.4687 THz

    Fig. 10. Representative THz images of BeO sample at different frequencies. (a) 1.4781 THz; (b) 1.4719 THz; (c) 1.1969 THz; (d) 1.1937 THz; (e) 1.475 THz; (f) 1.1875 THz; (g) 1.4656 THz; (h) 1.4687 THz

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    Representative THz images of ZrO2 sample at different frequencies. (a) 0.31562 THz; (b) 0.38437 THz; (c) 0.2625 THz; (d) 0.32187 THz; (e) 0.35625 THz; (f) 0.3875 THz; (g) 0.39062 THz; (h) 0.325 THz

    Fig. 11. Representative THz images of ZrO2 sample at different frequencies. (a) 0.31562 THz; (b) 0.38437 THz; (c) 0.2625 THz; (d) 0.32187 THz; (e) 0.35625 THz; (f) 0.3875 THz; (g) 0.39062 THz; (h) 0.325 THz

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    Similarity cosine value distributions of images for four kinds of samples

    Fig. 12. Similarity cosine value distributions of images for four kinds of samples

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    • Table 1. Comparison among objective evaluation indexes for image quality

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      Table 1. Comparison among objective evaluation indexes for image quality

      SampleSDHAGSFPSNR /dB
      Al2O3(0.76 THz imaging)27.30296.31363.19636.783517.7804
      AlN(1.48 THz imaging)30.54936.29039.680517.089110.8352
      BeO(1.48 THz imaging)27.46786.49808.397314.58159.8233
      ZrO2(0.24 THz imaging)57.27626.51411.34612.73347.5815
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    Tiejun Li, Yue Sun, Guifang Shao, Weiren Shi, Jianjun Liu, Shihan Yan. Terahertz Nondestructive Detection Method of Ceramic Matrix Composites[J]. Laser & Optoelectronics Progress, 2018, 55(6): 061101

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    Paper Information

    Category: Imaging Systems

    Received: Dec. 1, 2017

    Accepted: --

    Published Online: Sep. 11, 2018

    The Author Email: Shao Guifang ( gfshao@xmu.edu.cn)

    DOI:10.3788/LOP55.061101

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology