Journal ArticleDOI
Zero-Rate Output and Quadrature Compensation in Vibratory MEMS Gyroscopes
TLDR
In this paper, the effects of synchronous demodulation and electrostatic quadrature compensation performed with a dc voltage on the final zero-rate output (ZRO) of a vibratory microgyroscope are studied.Abstract:
In this paper, issues related to the zero-rate output (ZRO) of a vibratory microgyroscope are studied. Different sources of the ZRO are discussed and how the effect of each source can be minimized and their stability improved is described. The effects of synchronous demodulation and electrostatic quadrature compensation performed with a dc voltage on the final ZRO are analyzed. Ways to implement the control loop for electrostatic quadrature compensation performed with a dc voltage are described, concentrating on a case where the compensation voltage is generated with a digital-to-analog converter and the controller is digital. In particular, extending the resolution with SigmaDelta techniques is studied. The experimental work shows the feasibility of the implemented quadrature compensation loop and analyzes the ZRO sources of one particular gyroscope implementation. How to perform the ZRO measurements in such a way that the various sources can be distinguished from each other is also described.read more
Citations
More filters
Journal ArticleDOI
The Development of Micromachined Gyroscope Structure and Circuitry Technology
Dunzhu Xia,Yu Cheng,Lun Kong +2 more
TL;DR: This review surveys micromachined gyroscope structure and circuitry technology and the characteristics of various typical gyroscopes are discussed and investigated in detail.
Journal ArticleDOI
Quadrature-Error Compensation and Corresponding Effects on the Performance of Fully Decoupled MEMS Gyroscopes
TL;DR: In this paper, the authors present experimental data about the sources of the quadrature error in a fully decoupled microelectromechanical systems gyroscope and demonstrate the extent of performance improvement by the cancellation of this error.
Journal ArticleDOI
A Closed-Loop Digitally Controlled MEMS Gyroscope With Unconstrained Sigma-Delta Force-Feedback
TL;DR: In this paper, the authors describe the system architecture and prototype measurements of a MEMS gyroscope system with a resolution of 0.025deg/s/ radic(Hz).
Journal ArticleDOI
Fixed-wing MAV attitude stability in atmospheric turbulence—Part 2: Investigating biologically-inspired sensors
Abdulghani Mohamed,Simon C. Watkins,Reece A. Clothier,Mujahid Abdulrahim,Kevin Massey,Roberto Sabatini +5 more
TL;DR: In this paper, a number of biological mechanoreceptors used by flying animals are explored for their utility in micro-air vehicles (MAVs) to sense the disturbances before a perturbation is induced.
Journal ArticleDOI
The attitude control of fixed-wing MAVS in turbulent environments
TL;DR: In this article, the attitude control performance of fixed-wing micro aerial vehicles (MAVs) is assessed in relation to the unique constraints imposed by this class of UAVs.
References
More filters
Book
Understanding Delta-Sigma Data Converters
TL;DR: This chapter discusses the design and simulation of delta-sigma modulator systems, and some of the considerations for implementation considerations for [Delta][Sigma] ADCs.
Journal ArticleDOI
Micromachined inertial sensors
TL;DR: Inertial sensors have seen a steady improvement in their performance, and today, microaccelerometers can resolve accelerations in the micro-g range, while the performance of gyroscopes has improved by a factor of 10/spl times/ every two years during the past eight years.
Journal ArticleDOI
Error sources in in-plane silicon tuning-fork MEMS gyroscopes
Marc S. Weinberg,A. Kourepenis +1 more
TL;DR: In this paper, the error sources defining tactical-grade performance in silicon, in-plane tuning-fork gyroscopes such as the Honeywell-Draper units being delivered for military applications are analyzed.
Proceedings ArticleDOI
Surface Micromachined Z-Axis Vibratory Rate Gyroscope
Patent
Electronics for coriolis force and other sensors
TL;DR: In this article, an amplifier with a bandpass circuit in cascade with the forward loop gain is provided, with the bandpass circuits having a transfer function approximating one plus a band pass characteristic, the passband of which corresponds to the information band.