对一种双端固支梁式全光型光纤加速度传感器的相位灵敏度等重要参数进行了理论分析和测量。制作的盘贴长度为9m、振子质量为74.82g的传感器的相位灵敏度可以达到2494rad/g@100Hz,传感器的横向灵敏度小于3.7%,可以对1Hz至100Hz低频微振动进行有效测量,该传感器具有相位灵敏度高、单方向性好、体积小、成本低等特点,已应用于地下油气勘探等。 The important parameters such as the phase sensitivity of a double-ended fixed beam optical fiber acceleration sensor are analyzed and measured. The fabricated sensor has a phase sensitivity of 2494 rad / g at 100 Hz and a lateral sensitivity of less than 3.7% with a transducer mass of 74.82 g. This sensor can effectively measure low-frequency micro-vibration from 1 Hz to 100 Hz. The sensor has a phase High sensitivity, good unidirectional, small size, low cost, etc., has been used in underground oil and gas exploration.