<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>21817</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>7</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>29</volume>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace>Melville, NY</publisherPlace>
    <creatingCorporation>American Institute of Physics</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Ultrasonic inspection system for automated round-bar-testing based on phased array technique</title>
    <abstract language="eng">Within a know-how transfer project funded by the government conventional ultrasonic
technique was replaced by phased array technique for automated round-bar testing. Instead of
applying a great number of conventional probes to achieve acceptable volume coverage we used
curved linear arrays. The benefits of phased array technique such as programmable skew angles,
beamforming and beam positions, led not only to a significant decrease in inspection time, but also the
number of probes could be substantially reduced . Finally, the testing parameters for a large range of
bar-diameters could be adapted by software control instead of time-consuming mechanical
replacement. The probe-design was carried out by a proprietary modelling program. Both the
theoretical calculations as well as the latter experimental verifications revealed significant advantages
of curved arrays versus the planar types. A radial oriented probe offers perfect adaption to the
cylindrical shape of the specimen allowing wide variations of the sound field. Thus beam direction,
beam size and beam position could be optimized with respect to a minimum of inspection cycles, as
inspections have to be executed in-line during the production. A number of laboratory tests were
carried out on special test components. In order to achieve an optimal performance of the reference
rod we implemented three different types of reference reflectors: (i) flat-bottom-holes with diameters
of 0.8 mm and 1.2 mm, (ii) side-drilled-holes with a diameter of 0.7 mm for the detection of
volumetric flaws, and (iii) notches with a depth of 0.2 mm and 0.5 mm for the detection of surfaceoriented
defects. All laboratory tests were carried out with the COMPAS-XXL inspection system, a
proprietary development of BAM.</abstract>
    <parentTitle language="eng">QNDE conference 2010 - Review of progress in quantitative nondestructive evaluation (Proceedings)</parentTitle>
    <identifier type="old">24272</identifier>
    <identifier type="isbn">978-0-7354-0748-0</identifier>
    <identifier type="issn">0743-0760</identifier>
    <identifier type="issn">0094-243X</identifier>
    <note>Serientitel: AIP conference proceedings – Series title: AIP conference proceedings</note>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="eventName">36th Annual Review of Progress in Quantitative Nondestructive Evaluation</enrichment>
    <enrichment key="eventPlace">Kingston, RI, USA</enrichment>
    <enrichment key="eventStart">2009-07-26</enrichment>
    <enrichment key="eventEnd">2009-07-31</enrichment>
    <enrichment key="date_peer_review">19.08.2010</enrichment>
    <author>Gottfried Schenk</author>
    <author>Daniel Brackrock</author>
    <author>Gerhard Brekow</author>
    <author>Marc Kreutzbruck</author>
    <author>W.A.K. Deutsch</author>
    <author>M. Joswig</author>
    <author>K. Maxam</author>
    <author>V. Schuster</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ultrasonic testing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phased array</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Round bar testing</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
</export-example>
