What is an EMAT?
Full Matrix EMAT designs form the basis of our ultrasonic sensing technology.
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EMAT
Elecromagnetic Acoustic Transducers
Send and Receive Sound
Full Matrix EMATs send and receive ultrasound using electromagnetic waves to generate vibrations in the surface of a material.​​​​ Electromagnetic sound generation removes the need for transducers to make mechanical contact, therefore no tedious surface preparation, messy couplant or adhesives are required.
EMAT
Non-contact measurements can be performed more reproducibly, and in challenging environments such as extremes of heat, radiation and even on moving parts. The sound generation mechanism does not dampen the vibrating surface, resulting in accurate, more sustained signals.
EMAT transducers generate shear-mode guided waves directly without additional mode conversion equipment, making them desirable for non-destructive testing applications.​​​​​​​
Versatile
Robust
Non-contact
Bespoke EMATs
​​Full Matrix makes EMATs for monitoring of pipes, plates, rails and components with complex shapes. EMATs are optimised for a specific force transmission profile to excite guided waves tailored to a particular application.
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Full Matrix EMAT designs are the result of a rigorous programme of innovation and testing.
The flexibility of different magnet arrays and coil geometries allows EMATs to generate signals appropriate to any scenario.
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The design of EMAT begins by considering the optimal guided wave mode and frequency range for a particular application, which informs the configuration of magnets and coils. This allows an appropriate force profile to be generated to achieve the desired signals.
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EMAT Designs
Compression Modes
Tortional Modes
Rail Monitoring
Nuclear Fusion
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