Welding-packaged accelerometer based on metal-coated FBG

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（7）
• 页码范围: 21-23
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.070604

摘要

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.