Automatic Ultrasonic Testing for Components with Complex Surfaces

Ultrasonic Imaging in Automatic and Manual Testing

Owing to the successful use of phased array probes in automatic testing machines, more and more applications can now be found in the field of manual inspections. Miniaturization of electronic components and improvements of processing speed allow the integration of phased array hardware into a small, battery driven instruments for fast ultrasonic imaging. The advantages of the phased array techn...

Automatic Inspection of Aircraft Components Using Thermographic and Ultrasonic Techniques

Quantitative Ultrasonic Testing of Pressurized Components Using Sampling Phased Array

Ultrasonic testing and evaluation procedures typically depend on reference reflectors to establish detection sensitivity and evaluation of test data. Rules and regulations governing safety-related components emphasize on test procedures that assure the detectability of discontinuities at all over the component and oriented in any arbitrary direction. Existing procedures, however, do not provide...

Non-Destructive Inspection of Components with Irregular Surfaces using a Conformable Ultrasonic Phased Array

A conformable phased array device is being developed that allows reliable ultrasonic inspection of components with irregular surfaces. The device uses a standard linear phased array transducer, which is coupled to the surface under test by a water path, encapsulated by a low loss, synthetic rubber membrane. A comparison of results obtained using conventional ultrasonic techniques and the confor...

Automatic testing of software with structurally complex inputs

Modern software pervasively uses structurally complex data such as linked data structures. The standard approach to generating test suites for such software, manual generation of the inputs in the suite, is tedious and error-prone. This dissertation proposes a new approach for specifying properties of structurally complex test inputs; presents a technique that automates generation of such input...