建立了加速度传感器力学模型,设计了一个新型光纤加速度传感器;采用三维建模软件进行建模,并推导固有频率计算公式进行理论计算,采用ANSYS软件对板簧进行模态分析,对加速度传感器进行动态测试。实验结果表明,所设计传感器结构的固有频率可达到95Hz,灵敏度达到300pm/g,能扩大其工程应用的范围。 The mechanical model of accelerometer was established and a new type of optical fiber acceleration sensor was designed. The three-dimensional modeling software was used for modeling. The natural frequency calculation formula was deduced for theoretical calculation. The leaf spring was modeled by ANSYS software and the acceleration sensor was dynamically test. The experimental results show that the natural frequency of the designed sensor structure can reach 95Hz and the sensitivity reaches 300pm / g, which can enlarge the scope of its engineering application.