Working Principles of Fiber Optic Sensors

Fiber optic sensors use optical principles to detect physical quantities. They use fibers as sensing elements, transmitting light to a detector where signal changes are converted to electrical signals for measurement. Fiber optic sensors are compact, interference-resistant, and reliable.

Fiber transmission properties, fiber type, and light source affect measurement accuracy. Optical sensing techniques use interference, scattering, and absorption to sense quantities like rotation, temperature, and pressure. Applications include industrial monitoring, medical devices, defense, and scientific research.

Fiber optic sensors support remote and distributed measurements and are suited for harsh or hard-to-reach environments.