

EMAT technology is an ultrasonic non destructive testing method that differs from the traditional piezoelectric transducers in the way the sound is generated. In traditional ultrasound technology a piezoelectric crystal is used to convert electrical energy into mechanical vibration. The vibration makes its way into the test piece via the couplant.
An EMAT consists of a magnet & a coil of wire and relies on electro-magnetic acoustic interaction for elastic wave generation. Using Lorentz forces and magnetostriction, the EMAT & the metal test surface interact and generate an acoustic wave within the material. The material being inspected is its own transducer, eliminating the need for liquid couplant.

NDTS India (P) Limited
619 & 620, The Great Eastern Galleria
Plot No. 20,Sector 4, Nerul
Navi Mumbai - 400 706.
619 & 620, The Great Eastern Galleria
Plot No. 20,Sector 4, Nerul
Navi Mumbai - 400 706.
Tel. : + 91-22-6138 0600
+ 91-22-2770 3913
+ 91-22-2770 3923
+ 91-22-2772 9077
Fax : + 91-22-2770 3903
Email : info@ndts.co.in
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