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Proceedings Paper

Real-time full-field ultrasonic inspection of composites using acoustography
Author(s): Jaswinder S. Sandhu; Honghui Wang; Milind M. Sonpatki; Witold J. Popek
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Paper Abstract

Many small composite parts undergo manual pulse-echo scan because 1) the set-up time for and automated scan is unjustifiably long and 2) the automated scan does not provide the flexibility to cope with frequent angle changes in a complex geometry part. Manual scans can be time consuming, laborious, and are prone to errors due to operator fatigue and subjectivity. What is required is a full-field ultrasonic inspection system analogous to real time radiography that allows the operator to perform ultrasonic inspection by manipulating the part under a systems field of view. In this paper, we will present an acoustography-based ultrasonic inspection system developed under a SBIR (Small Business Innovation Research) award that is bringing this vision to into reality. Acoustography is the ultrasonic analog of radiography and photography. A unique, wide area 2D detector, called acousto-optic (AO) sensor, is used to directly convert ultrasound into visual images; much like a fluorescent screen is able to convert x-rays into visual images. It offers the potential for providing the NDT engineer with a large field of view (e.g. 6”x 6” or larger) and a capability to inspect complex shaped parts in real time.

Paper Details

Date Published: 1 August 2003
PDF: 6 pages
Proc. SPIE 5046, Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Composites II, (1 August 2003); doi: 10.1117/12.484112
Show Author Affiliations
Jaswinder S. Sandhu, Santec Systems, Inc. (United States)
Honghui Wang, Santec Systems, Inc. (United States)
Milind M. Sonpatki, Santec Systems, Inc. (United States)
Witold J. Popek, Santec Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 5046:
Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Composites II
Andrew L. Gyekenyesi; Peter J. Shull, Editor(s)

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