Development of DSP Based Signal Acquisition and Processing System for Extrinsic Fabry-Perot Interferometric (EFPI) Fiber Optic Sensors

摘要

The advent of fiber optic sensors has brought numerous potential advantages over conventional electrical signal based sensors, such as small size and weight, immunity to electromagnetic interference, lack of sparking hazard, larger bandwidth, easy interface with data communication system, higher accuracy and resolution, and high multiplexing potentials. Along with this, the low optical loss of the fibers makes it possible to locate sensors far from the signal processing electronics. Their ability to withstand high level of radiation, temperature and pressure makes them ideal for applications in harsh environments. The optical fiber sensing proves to be a remarkably versatile approach in the field of measurement.