ON ESTIMATION OF THE INFLUENCE OF THE HUMAN FACTOR ON DETECTION OF DEFECTS IN ULTRASONIC FLAW DETECTION AND DEFECTOMETRY-Reference-Cited by-同舟云学术

ON ESTIMATION OF THE INFLUENCE OF THE HUMAN FACTOR ON DETECTION OF DEFECTS IN ULTRASONIC FLAW DETECTION AND DEFECTOMETRY

Published:2021-10 Issue:280 Volume: Page:4-10
ISSN:0201-7032
Container-title:Kontrol'. Diagnostika
language:ru
Short-container-title:td

Author:

Badalyan V. G.

Abstract

Based on the analysis of the results of ultrasonic testing, a quantitative assessment of the influence of the human factor on the PoD curves built for independent inspectors, several (different) flaw detection techniques was obtained. It is shown that the average value of the change in the probability of detecting flaws, which determines the value of the correction coefficient equal to 0.015 for flaws with a height of 4 to 12 mm (for the defectometry technique) and 0.18 for flaws with a height of 5 to 12 mm (for flaw detection techniques). For flaws less, than 4 mm in height, the average value of the change in the probability of detecting flaws for individual inspectors depends significantly on the height of the flaw. A significant difference in the average value of the change in the probability of detecting flaws and the standard deviation during inspection by flaw detection and defectometry techniques is associated with the difference in the amount of information provided by the inspection techniques and the individual characteristics of the inspectors.

Publisher

Izdatel'skii dom Spektr, LLC

Subject

General Medicine

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