Paper Title:
Effect of Emission Points on Ultrasonic Testing Accuracy of Log Internal Decay
  Abstract

The principle of geometric analysis was adopted in this paper to calculate the ultrasonic testing accuracy of log samples containing different sizes of internal decay. The relationship between the number of ultrasonic emission points and the detection accuracy of log internal decay was analyzed. And the number of emission points that can effectively test the internal decay defect was determined. Results show that when the defect area of the log is fixed, the testing accuracy can be improved as the ultrasonic emission points increase. When the diameter of the log is 30cm, and the ratio of deficiency in the cross-section of the log is between 2.7% to 44%, at least 4 emission points should be selected for the testing accuracy to reach 90%.

  Info
Periodical
Chapter
Chapter 4: Mechanical Behavior & Fracture
Edited by
Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang
Pages
682-685
DOI
10.4028/www.scientific.net/AMR.337.682
Citation
N. Wang, L. H. Wang, H. D. Xu, "Effect of Emission Points on Ultrasonic Testing Accuracy of Log Internal Decay", Advanced Materials Research, Vol. 337, pp. 682-685, 2011
Online since
September 2011
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Price
$32.00
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