A new fiber Bragg grating based accelerometer

摘要：

A new fiber Bragg grating (FBG) based accelerometer is developed for monitoring seismic activities induced by moving vehicles. A theoretical model of the sensor is established, and analytical formulas of describing the sensitivity and resonant frequency are provided. Sensors of this type are fabricated and tested. The experimental results show that they have a sensitivity of 162.8 pm/G and a resonant frequency of 242.9Hz. The minimum detectable signal of the whole sensing system is about 12.1 g. A field test is carried out to find out that for tracked vehicles monitoring, a single sensor has a detection range of about 300 meters, indicating a promising future in practical use.

关键词： fiber Bragg grating accelerometer seismic activity vehicle

作者: Yongjie Wang Rui Wang Fang Li Yuliang Liu

作者单位: Optoelectronic System Laboratory, Institute of Semiconductors,Chinese Academy of Sciences, Beijing, Optoelectronic System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing,

会议类型: 国际会议

会议名称: 第五届仪器科学与技术国际学术会议(ISIST 2008)Fifth International Symposium on Instrmentation Science and Technology

会议地点: 沈阳

会议语种:英文

页码: 1-6

在线出版日期: 2008-09-15（万方平台首次上网日期，不代表论文的发表时间）