Last month, I wrote about types of fiber optic sensors that are used in specialized applications. Most of these affect the transmission of light in the fiber to allow the physical parameter to be sensed either along the entire length of the fiber or at discrete points where sensors are connected to the fiber. Many of these sensors can be attached in series along a single fiber to connect up sensors over a large area and monitored using an instrument such as an optical time domain reflectometer.

Sourced through Scoop.it from: www.ecmag.com