According to demand of large-scale bridge and civil structure health monitor, a new type of fiber Bragg grating accelerometer which has low nature frequency and high sensitivity has been come forth. The working principle and the structure of the new type of fiber Bragg grating accelerometer were described in this paper. Analysis approach of static and dynamic characteristic has been developed by finite element method software, ANSYS. The result of optimization and analysis shows: The accelerometer has good sensitivity, smaller cross-axis sensitiv...
