High Figure of Merit and Low Cross Sensitivity Fiber Bragg Grating Accelerometer Based on Double Grid-Diaphragms

Autor:	Xueguang Qiao, Dakuan Yu, Rong Zhang, Wangfei Liu, Qinpeng Liu, Wei Fan, Chunfang Wang
Rok vydání:	2021
Předmět:	Materials science business.industry Frequency band Low frequency Grid Accelerometer Optics Fiber Bragg grating Range (statistics) Figure of merit Sensitivity (control systems) Electrical and Electronic Engineering business Instrumentation
Zdroj:	IEEE Sensors Journal. 21:27503-27509
ISSN:	2379-9153 1530-437X
Popis:	Use of a detailed parallel theoretical model has allowed the design of a high figure of merit and low cross sensitivity accelerometer based on fiber Bragg grating (FBG), and the good response characteristics have been demonstrated experimentally. The relationship between the sensitivity and resonant frequency is downplayed, the mechanism of expanding the frequency band and maintaining higher sensitivity has been analyzed. A FBG accelerometer with a good performance of higher main-axis sensitivity and lower cross sensitivity has been presented. The experimental results obtained indicate that the FBG accelerometer has a broad frequency range from 1 to 60Hz, the corresponding sensitivity range from 754.3 to 763.2pm/G, while the fluctuation is less than 3dB. The resonant frequency is 103Hz, and the corresponding cross sensitivity is less than -24.76dB (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7120bdc0a7f6ad64728a37d5f05efa98 https://doi.org/10.1109/jsen.2021.3124030 Zobrazit plný text záznamu