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We propose a new nondestructive inspection method for fiberglass-reinforced plastic mortar pipes using microwave guided-mode and photonic techniques. This method is based on precise measurement of microwave evanescent fields along the pipe-wall using electro-optic sensors.
A new nondestructive inspection method for fiberglass-reinforced plastic mortar (FRPM) pipes using microwave and photonic techniques is proposed. We found that FRPM pipes of 250∼1000 mm in diameter and 20 mm in thickness can be a good cylindrical waveguide with single or a few guided modes for 1∼10 GHz microwave and that the microwave transmission along a FRPM pipe is rather affected by defects in...
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