Shown here is the application of Acoustography for inspecting parts containing tight radii.  Note the presence of defect (B) along the tight radii.  This specimen could be evaluated in only seconds by simply rotating the part under Acoustography system's field-of-view.  Moreover, a relatively inexperienced operator was required to perform the inspection.    C-scan inspection of such specimens is not efficient and can be costly because of up front modeling and programming required to create a contour following scan plan.  Therefore, a common practice in industry for such cases is to employ manual inspection techniques, such as acquiring and analyzing A-scans along the radii.  However, the A-scan method is very laborious and prone to errors inherent to manual methods, such as operator fatigue, subjectivity, and human error.  Acoustography provides a simple and affordable alternative to conventional A-scan and C-scan method for the inspecting parts containing tight radii.

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