Paper Title:
Effect of Modulation Frequency on Detecting Metal Materials with Microcracks Based on Ultrasound Infrared Lock-in Thermography
  Abstract

The non-destructive ultrasound infrared lock-in thermography (ULT) testing method was used to detect metal specimens with defects of micro cracks. An experimental platform was built based on the analysis of the ULT principle. Experiments had been carried out to Q235 plates with different testing parameters. The testing effect of thermography, amplitude and phase images was analyzed, and the relations between amplitude difference, phase difference, signal-to-noise ratio and modulation frequency were discussed.

  Info
Periodical
Advanced Materials Research (Volumes 314-316)
Chapter
Tooling/Testing and Evaluation of Materials
Edited by
Jian Gao
Pages
1387-1390
DOI
10.4028/www.scientific.net/AMR.314-316.1387
Citation
Q. J. Tang, J. Y. Liu, Y. Wang, "Effect of Modulation Frequency on Detecting Metal Materials with Microcracks Based on Ultrasound Infrared Lock-in Thermography", Advanced Materials Research, Vols. 314-316, pp. 1387-1390, 2011
Online since
August 2011
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Price
$32.00
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