Tilted fiber Bragg grating fixed in a polypropylene tube for ultrasonic sensing and imaging of simulated geological models

• Published in: Optics and laser technology Vol. 140; p. 107075
• Main Authors: Gang, Tingting, Zhang, Xuan, Sun, Ruijuan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2021; Elsevier BV
• Subjects: Bragg gratings; Data processing; Imaging of simulated geological models; Polypropylene; Seismic stability; Sensors; Tilted fiber Bragg grating; Ultrasonic sensing; Ultrasonic testing; Imaging of simulated geological models; Ultrasonic sensing; Tilted fiber Bragg grating

•A fiber ultrasonic sensor based on TFBG is proposed and demonstrated.•TFBG is packaged in a tilted tube resulting great stability and direction dependence.•2D images of models are reconstructed using time lapse changes in reflected signal. A fiber ultrasonic sensor based on tilted fiber Bragg grati...