Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 36,
  • Issue 24,
  • pp. 5738-5745
  • (2018)

Analysis and Design of Closed-Loop Detection Technique for Micro-Grating Accelerometer

Not Accessible

Your library or personal account may give you access

Abstract

A novel closed-loop control method with Pound–Drever–Hall modulation technology is proposed to optimize the linearity and detection accuracy of micro-grating accelerometer in practical application. The closed-loop error is modulated to a high frequency for eliminating the direct current component of the interference intensity and stray light disturbance. After phase sensitive detector and filter of demodulation, the closed-loop error signal is obtained with high signal-to- noise ratio. Based on the principle of designed modulation and demodulation method, the dynamic model of closed-loop micro-grating accelerometer is established considering the nonlinear interference effect, optical intensity fluctuation, and unavoidable noise. Then, a robust control algorithm is designed to optimize the performance of micro-grating accelerometer. The experimental results demonstrate that the micro-grating accelerometer has linearity within 0.35% and the bias stability 0.2 mg, which validate the effectiveness and usefulness of the proposed closed-loop detection scheme.

© 2018 IEEE

PDF Article
More Like This
Noise suppression of a micro-grating accelerometer based on the dual modulation method

Tianhang Zhang, Huilan Liu, Lishuang Feng, Xiao Wang, and Yu Zhang
Appl. Opt. 56(36) 10003-10008 (2017)

Linearization signal conditioning circuit for tri-axial micro-grating MOEMS accelerometer

Li Jin, Kunyang Xie, Yixin Du, and Mengwei Li
Opt. Express 32(6) 10241-10251 (2024)

Sensitivity improvement of micro-grating accelerometer based on differential detection method

Xiao Wang, Lishuang Feng, Baoyin Yao, and Xiaoyuan Ren
Appl. Opt. 52(18) 4091-4096 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved