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Introduction to our products
Acoustic Emission testing is a powerful method for examining material behaviour when deforming under stress. Acoustic Emission is a physical phenomenon which can be described as the “sound” materials make when they are in trouble. With Acoustic Emission equipment you can “listen” to the sounds of cracks growing, fibres breaking and many other modes of active damage in the stressed material.
Small-scale damage is detectable long before failure, so AE can be used as a non-destructive technique to find defects during structural proof tests and plant operation. AE also offers unique capabilities for materials research and development in the laboratory. Finally, AE equipment is adaptable to many forms of production QC testing, including weld monitoring and leak detection.
Traditionally acoustic emission sensors have been based on piezoceramics and the working principle has been the same as for common accelerometers. This means that the surface wave has been transformed into one-dimensional wave propagation with a terminating reaction mass. Covial Devices have developed an acoustic emission sensor with exceptional properties by utilizing the extremely high magneto-elastic coupling of magnetostrictive amorphous alloys. The Covial sensor measures acoustic emission from 50 KHz-1000 kHz.
Please choose from the product menu above for more information about our sensors.
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