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Ultrasonic phased-array imaging (Open access)

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Example of commercial equipment now incorporating FMC based imaging algorithms (Courtesy M2M)

 

The Bristol team have pioneered image and signal processing methods through RCNDE core research to make best use of ultrasonic phased-array technology in NDT applications. A range of imaging techniques and algorithms are openly available to the market, are being increasingly adopted in commercial NDE systems and used by the NDE service industry to inspect a wide range of the UK’s and worldwide industrial infrastructure.

The approach is based on Full Matrix Capture (FMC) which involves firing one phased-array element and receiving on all other elements, and then repeating this for the next transmit element until all have been used as transmit elements. The effective application of this technology required new instrument architectures and operation for efficient data collection – now that such equipment is available the Bristol imaging algorithms and software enable reduced inspection time, improved defect detection and sizing performance and provide a technical solution when existing standard techniques fail.

3D image display

3D image display

Example of ultrasonic array inspection of a difficult composite component, showing the improvement in defect detection obtained through data processing techniques.

Example of ultrasonic array inspection of a difficult composite component, showing the improvement in defect detection obtained through data processing techniques.