Numerical Study on Shear Horizontal Electromagnetic Acoustic Transducers for Generation of Ultrasonic Guided Waves for Absorber Tubes used in Concentrated Solar Plants
Absorber tubes are one of the most critical components of parabolic trough Concentrated Solar Plants, which is very likely get damaged such as crack and mass loss. Therefore, the monitoring of their structural health via Non-Destructive Testing (NDT) techniques is regarded as essential for preventing them from being significantly defective and thereby reducing maintenance cost. Non-contact ultrasonic guided wave (UGW) method is one of the best candidates. In this paper, reports simulated and modelling results for development of Electromagnetic Acoustic Transducers (EMATs) to performance non-contact UGW. A configuration and optimisation of EMAT transducers is carried out。 Design of coil and magnet for EMAT transducers along with numerical simulation results are investigated using COMSOL
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