Chinese Optics Letters, 2013, 11 (7): 070604, Published Online: Jul. 8, 2013
Welding-packaged accelerometer based on metal-coated FBG Download: 725次
Abstract
A fiber Bragg grating-based accelerometer with a fully metalized package is presented. Magnetron sputtering and electroplating techneques are successively adopted to metalize bare SiO2 fiber with a single Bragg grating. Laser welding techneque is adopted to fix the metal-coated fiber on the sensor component to obtain a fully metallized package without adhesives. Vibration test results demonstrate that the accelerometer has a flat frequency response over a 1-kHz bandwidth, with a resonance frequency of 3.6 kHz, wide linear measurement range of up to 8 g, and sensitivity of 1.7 pm/g.
Yongxing Guo, Dongsheng Zhang, Zude Zhou, Li Xiong, Xiwang Deng. Welding-packaged accelerometer based on metal-coated FBG[J]. Chinese Optics Letters, 2013, 11(7): 070604.