Fiber Optical Sensors for Monitoring the State of Objects and The Environment

Abstract

The article describes new approaches to measuring environmental parameters and technical
devices in monitoring systems, based on the use of the capabilities of fiber-optic systems with various
methods of processing an optical signal. It is shown that the use of such systems will significantly simplify
the measurement process, as well as obtain new possibilities for measuring and analyzing physical
quantities. Recent developments in optical fiber array sensors are reviewed, including quasi-distributed strain
measurement using Bragg gratings, chirped grating systems, intra-array sensing concepts, long period array
sensors, and interferometric sensor systems based on grating reflectors.