Laser-Ultrasound Testing of Cracks in Porcelain Insulator

Ru Feng Hou; Wen Hong Wang; Run Yang Mo; Xiao Jun Liu

doi:10.4028/www.scientific.net/AMR.774-776.1349

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 774-776Laser-Ultrasound Testing of Cracks in Porcelain...

Laser-Ultrasound Testing of Cracks in Porcelain Insulator

Abstract:

Detected the cracks in porcelain insulator is a strategy to prevent failure. This study proposes a remote detect technique to inspect the cracks in on-line porcelain insulator based on laser-generation based imaging (LGBI) method. Two porcelain insulators samples A and B were designed. Samples A is a 10kv porcelain insulator work outdoors, it has five artificial notch-type defects in the cylindrical surface of porcelain insulator. Sample B is a 10kv porcelain insulator work indoor with aging cracks. All defects in two specimens were detected by laser ultrasonic visualizing inspector (LUVI). Images are quite convenient to confirm cracks morphology. The experiment proves that the cracks in porcelain insulator can be detected by LUVI system.

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Periodical:

Advanced Materials Research (Volumes 774-776)

Pages:

1349-1352

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.774-776.1349

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Online since:

September 2013

Authors:

Ru Feng Hou, Wen Hong Wang, Run Yang Mo, Xiao Jun Liu

Keywords:

Crack, Laser Ultrasonics, Nondestructive Testing in Service, Porcelain Insulator

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