A Smart Transducer Interface Module for Fibre Bragg Grating Sensors
Faculty of Computing, Health and Science
School of Engineering / Centre for Communications Engineering Research
In this work we present a Smart Transducer Interface Module (STIM) for fibre Bragg grating sensors. The STIM is designed to directly detect intensity modulated signals, or convert spectrally modulated signals into intensity modulated signals. The STIM is a general purpose interface that has been designed to interface with fibre Bragg grating sensors. The STIM is made up of two optical fibre receivers, a differential amplifier and a digital signal processor. The two received signals are differentially amplified to increase sensitivity and the signal-to-noise ratio. The STIM was tested using an optical fibre Bragg grating strain sensor.