A method is proposed that measuring temperature and vibration simultaneously by filtering separation technology using a single Bragg grating. Based on finite element method(FEM) in the force filed
an equal strain beam is designed to converse dynamic energy. A vibrating carrier optical signal is obtained by modulating the FBG center wavelength with the FBG strain sensitivity.
Uniaxial fiber Bragg grating accelerometer system with temperature and cross axis insensitivity [J] . Paulo Antunes,Humberto Varum,Paulo André. Measurement . 2010 (1)