Statistical analysis of ultrasonic reflector response

Mihaljević, Morana and Markučič, Damir and Stepanić, Josip (2010) Statistical analysis of ultrasonic reflector response. = Statistical analysis of ultrasonic reflector response. In: The 21ST DAAAM World Symposium, "Intelligent Manufacturing & Automation: Focus on Interdisciplinary Solutions", 20-23.10.2010., Zadar; Croatia.

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Abstract

The sensitivity of ultrasonic testing system depends on many factors that should be adequately selected for precise reflector characterization. In this paper several factors were analyzed in order to show how their interactions influence variability of results. We utilized two-level three-factor design of experiments. The three factors selected and varied were probe frequency bandwidth, probe response damping and pulse energy. The experiment design enabled us to determine which factor and which interaction has the most significant influence on the reflector size evaluation. The underlying ultrasonic technique was the pulse echo technique in which the differences in gain between infinite reflector and disc reflector (DELTA) were determined. The bandwidth was revealed as the most influential among the three factors considered.

Item Type: Conference or Workshop Item (Poster)
Keywords (Croatian): bandwidth; design of experiments; manufacture; probes; statistical methods; ultrasonic testing; experiment design; probe frequency; pulse energies; pulse-echo technique; size evaluation; ultrasonic reflectors; ultrasonic techniques; reflection
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 800 Department of Quality > 820 Chair of Non-Destructive Testing
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 1 (07.09.2018.)
Date Deposited: 10 Jul 2015 10:00
Last Modified: 07 Sep 2018 13:04
URI: http://repozitorij.fsb.hr/id/eprint/4596

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