15 November 2018 Inspection of polyethylene gas pipe defect based on terahertz time domain spectroscopy
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Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109645N (2018) https://doi.org/10.1117/12.2506393
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China
Abstract
Polyethylene gas pipe sample with defects was detected by the transmission THz-TDS system. Firstly, the difference of the THz time-domain waveform and corresponding frequency spectra between the defect part and non-defect part was compared. Then, the PE pipe defects were imaged by the maximum value of THz time-domain data and the frequency-domain data. The results show that the existence of defects cause obvious reduction the maximum value of the THz time-domain spectrum. The PE defects can be clearly distinguished from the non-defect part by the transmission THz images. Imaged by the THz timed-domain and the frequency-domain parameter can reveal the defects in the polyethylene gas pipe.
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Qiang Chen, Qiang Chen, Qiang Wang, Qiang Wang, Yue Yu, Yue Yu, XiaoHong Gu, XiaoHong Gu, Zhangwei Ling, Zhangwei Ling, "Inspection of polyethylene gas pipe defect based on terahertz time domain spectroscopy", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109645N (15 November 2018); doi: 10.1117/12.2506393; https://doi.org/10.1117/12.2506393
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