Phased array ultrasonic systems utilize multi- element probes, which are individually excited under computer conrtrol. By exciting each element in a controlled manner, a focused beam of ultrasound can be generated. Software enables the beam to be steered. Two and three dimensional views can be generated showing the sizes and locations of any flaws detected.
Phased array can be used for lnspection of Welds, Thickness measurements, Corrosion inspection and Flaw detection.
The radiographic testing (RTI) technique involves the use of penetrating gamma or X- radiation to examine parts, welds and products for imperfections. An X-ray machine or radioactive isotope are used as a source of radiaton, where the radiation is directed through a part and onto film.
