By measuring variations in the elastic modulus of sheet metal, the crystallographic texture can be inferred. This gives an important tool for quality and process control at the cold rolling stage of strip production. Changes in the important Lankford or plastic strain parameters, as well as microstructural changes due to annealing and cold working, are related to the measured texture. The nature of EMATs suits them to rapid, non-contact scans of a section of sheet, with texture parameters determined in less than a minute (compared with hours using conventional texture measurement systems such as X-ray diffraction). This allows rapid feedback to the rolling mill of any parameters causing undesired product
EMATs can be used to detect coating thicknesses on metals with accuracy down to the micron level by measuring the shift in the resonant frequency of a coated metal plate. Since the EMAT does not physically touch the plate it does not affect the resonant frequency due to mass loading from the transducer or couplant.