Microgyroscope control system using a high-order band-pass continuous-time sigma-delta modulator
Microgyroscope control system using a high-order band-pass continuous-time sigma-delta modulator
The paper presents a novel 6th order continuous-time, force-feedback band-pass sigma-delta modulator control system for the detection mode of micromachined vibratory gyroscopes. Compared with the architecture using a low-pass sigma-delta modulator, this band-pass solution uses a much lower sampling frequency for the sigma-delta modulator and thus reduces the requirement for frequency response of the detection interface and control electronics. In this work, the sigma-delta modulator operates at only four times of mechanical resonant frequency, which allowed its implementation in a continuous-time circuit using discrete electronic components on a PCB; this has the advantage of simple prototyping and can improve the signal anti-aliasing characteristics.
299-305
Dong, Y.
04add285-7898-4fe7-8984-a670bd5af14a
Kraft, M.
54927621-738f-4d40-af56-a027f686b59f
Hedenstierna, N.
a274beb9-a499-484b-8202-a1c7c0d1e837
Redman-White, W.
d5376167-c925-460f-8e9c-13bffda8e0bf
July 2008
Dong, Y.
04add285-7898-4fe7-8984-a670bd5af14a
Kraft, M.
54927621-738f-4d40-af56-a027f686b59f
Hedenstierna, N.
a274beb9-a499-484b-8202-a1c7c0d1e837
Redman-White, W.
d5376167-c925-460f-8e9c-13bffda8e0bf
Dong, Y., Kraft, M., Hedenstierna, N. and Redman-White, W.
(2008)
Microgyroscope control system using a high-order band-pass continuous-time sigma-delta modulator.
Sensors and Actuators A: Physical, 145-146, .
(doi:10.1016/j.sna.2007.10.057).
Abstract
The paper presents a novel 6th order continuous-time, force-feedback band-pass sigma-delta modulator control system for the detection mode of micromachined vibratory gyroscopes. Compared with the architecture using a low-pass sigma-delta modulator, this band-pass solution uses a much lower sampling frequency for the sigma-delta modulator and thus reduces the requirement for frequency response of the detection interface and control electronics. In this work, the sigma-delta modulator operates at only four times of mechanical resonant frequency, which allowed its implementation in a continuous-time circuit using discrete electronic components on a PCB; this has the advantage of simple prototyping and can improve the signal anti-aliasing characteristics.
Text
S&A_Gyro_Yufeng.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
e-pub ahead of print date: 27 October 2007
Published date: July 2008
Organisations:
Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 269363
URI: http://eprints.soton.ac.uk/id/eprint/269363
ISSN: 0924-4247
PURE UUID: 4116ecd1-7a80-4d22-baeb-c7fa63c32cf9
Catalogue record
Date deposited: 21 Apr 2010 07:46
Last modified: 14 Mar 2024 09:16
Export record
Altmetrics
Contributors
Author:
Y. Dong
Author:
M. Kraft
Author:
N. Hedenstierna
Author:
W. Redman-White
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics