Acoustography | Intelligent Measurements and Evaluation Laboratory | SIU

Acoustography is a broad-area, near real-time ultrasonic imaging technique that provides an alternative to point-by-point ultrasonic testing.  In this approach, a novel, wide-area (AO) sensor is employed to provide whole-field ultrasonic images similar to real time x-ray imaging, as shown below.  One of the primary advantages of using Acoustography is that it has a larger field of view (FOV), 6 inch x 6 inch or 12 inch x 12 inch.  This can drastically reduce the inspection speed compared to traditional scanning techniques. Therefore, the Acoustography-based UT approach offers new capabilities to the NDE and provides a simple, fast, and economical alternative to conventional UT for the inspection and evaluation of various materials.

Comparison of the whole field imaging technology (a) Acoustography; (b) X-ray