microbending optical fiber sensors and their applications
Microbending optical fiber sensors based on bend-induced loss in optical fiber have proved themselves useful for detecting environmental changes. Many different mechanical elements have been developed to perform the sensing, each with attributes suitable for a particular application. The key structures and principles of microbending optical fiber sensors for special applications are introduced in this paper. It mainly includes strain sensor, liquid lever and pressure sensor, differential force and displacement sensor, and temperature sensor specially.
optical fiber sensor strain sensor pressure sensor temperature sensor microbending loss