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Ultra Sound

Detect internal discontinuities in materials, based on the phenomenon of reflection of acoustic waves when they encounter obstacles to its propagation within the material.

An ultrasonic pulse is generated and transmitted through a particular transducer, leaning against or attached to the material. The ultrasonic pulses reflected by a discontinuity, or the opposite surface of the piece, are captured by the transducer, converted into electronic signals and displayed on the LCD screen or a cathode ray tube (CRT) device.

Ultra sounds are acoustic waves with frequencies above the audible. Typically, ultra sonic frequencies lie in the range of 0.5 to 25 MHz

Generally, the actual dimensions of an internal defect can be estimated with reasonable accuracy, providing a means for the part or component in question can be accepted or rejected, based on acceptance criteria of the applicable standard. Used also for ultrasonic thickness gauge and corrosion determine with extreme ease and precision.

The numerous applications of this test are: welds, rolled, forged, welded, ferrous and non ferrous metals, alloys, glass, rubber, composite materials, it allows to be examined by ultrasound. Basic industry (steel plants) and manufacturing (heavy mechanical), automotive, maritime, rail, road, air and aerospace: all use ultrasound. Even in hospitals: the first image of a human fetus is obtained by ultrasound!

Nowadays ultrasound is used in industrial maintenance, the preventive detection of leaks of liquids or gases, operational failures in electrical systems (corona), vibrations in bearings and bearings, etc..

The ultrasonic test is, without doubt, the most widely used non-destructive method and presents the highest growth for the detection of internal discontinuities in materials.