Date of Publication :10th January 2018
Abstract: he current status of fiber-optic sensors is reviewed. The optical fiber sensors have certain advantages, including immunity to electromagnetic interference, lightweight, small size, high sensitivity, large bandwidth and ease of implementation of multiplexed or distributed sensors. The most widely studied measurements are strain, temperature and pressure and the fiber grating sensor represents the most widely studied technology for optical fiber sensors. Fiber optic gyroscopes and fiber optic current sensors are good examples of a rather mature and commercialized technology for optical fiber sensors. In this paper, in particular, technologies such as fiber grating sensors, fiber optic gyroscopes, and fiber optic current sensors are discussed with emphasis on the principles and current status. Today, the marketing of optical fiber sensors has found some success. They are still suffering from competition with other mature sensor technologies in various fields. Nevertheless, new ideas are being developed and tested on a continuous basis not only for conventional measurements but also for new applications.
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