Technical Diagnostics and NDT

The development of a new imaging technique  by researchers from the University of Bristol’s Ultrasonics and Non-destructive Testing (NDT) research group promises to be able to detect damage previously invisible to acoustic imaging systems which could lead to aircraft off the future being thinner and lighter.  Acoustic nonlinearity is sensitive to many physical properties including material microstructure and mechanical damage. The lack of effective imaging has, however, held back the use of this important method.  Engineers are currently able to produce images of the interior of components using ultrasound, but can only detect large problems such as cracks.  Imaging of acoustic nonlinearity is achieved by exploiting differences in the propagation of fields produced by the parallel and sequential transmission of elements in ultrasonic arrays. Commenting on the project, study lead, Dr Jack Potter, research assistant in the Department of Mecha...

Diagnostics! Well, yes, we all heard this word very many times in the medicine. There, diagnostics means, identification of the nature of an illness or other problem by examination of the symptoms. As same as Buddha tried to find reason for sadness before cure, doctors try to find reason for illness before cure, Engineers do test and evaluate before thinking a cure for those mechanical objects. It is one of the most important parts of engineering which is closely linked to aerospace engineering, civil engineering, electrical engineering, material science and engineering, mechanical engineering, nuclear engineering, petroleum engineering, physics etc… It’s often used in both constructional and service sides.