Linear Array Ultrasonic Transducers: Sensitivity and Resolution Study

Journal Article · Sat Apr 09 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1916911· OSTI ID:20655366

Kramb, V A ^[1]

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1. University of Dayton Research Institute, Dayton, OH 45469-0120 (United States)

The University of Dayton Research Institute (UDRI) under contract by the US Air Force has designed and integrated a fully automated inspection system for the inspection of turbine engines that incorporates linear phased array ultrasonic transducers. Phased array transducers have been successfully implemented into weld and turbine blade root inspections where the defect types are well known and characterized. Embedded defects in aerospace turbine engine components are less well defined, however. In order to determine the applicability of linear arrays to aerospace inspections the sensitivity of array transducers to embedded defects in engine materials must be characterized. In addition, the implementation of array transducers into legacy inspection procedures must take into account any differences in sensitivity between the array transducer and that of the single element transducer currently used. This paper discusses preliminary results in a study that compares the sensitivity of linear array and conventional single element transducers to synthetic hard alpha defects in a titanium alloy.

• OSTI ID: 20655366
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 760; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMPARATIVE EVALUATIONS
DEFECTS
ENGINES
INSPECTION
RESOLUTION
SENSITIVITY
TITANIUM ALLOYS
TRANSDUCERS
TURBINE BLADES
TURBINES
ULTRASONIC TESTING
WELDED JOINTS