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Proceedings Paper

FPGA platform for MEMS Disc Resonance Gyroscope (DRG) control
Author(s): Didier Keymeulen; Chris Peay; David Foor; Tran Trung; Alireza Bakhshi; Phil Withington; Karl Yee; Rich Terrile
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Paper Abstract

Inertial navigation systems based upon optical gyroscopes tend to be expensive, large, power consumptive, and are not long lived. Micro-Electromechanical Systems (MEMS) based gyros do not have these shortcomings; however, until recently, the performance of MEMS based gyros had been below navigation grade. Boeing and JPL have been cooperating since 1997 to develop high performance MEMS gyroscopes for miniature, low power space Inertial Reference Unit applications. The efforts resulted in demonstration of a Post Resonator Gyroscope (PRG). This experience led to the more compact Disc Resonator Gyroscope (DRG) for further reduced size and power with potentially increased performance. Currently, the mass, volume and power of the DRG are dominated by the size of the electronics. This paper will detail the FPGA based digital electronics architecture and its implementation for the DRG which will allow reduction of size and power and will increase performance through a reduction in electronics noise. Using the digital control based on FPGA, we can program and modify in real-time the control loop to adapt to the specificity of each particular gyro and the change of the mechanical characteristic of the gyro during its life time.

Paper Details

Date Published: 30 April 2008
PDF: 7 pages
Proc. SPIE 6959, Micro (MEMS) and Nanotechnologies for Space, Defense, and Security II, 69590P (30 April 2008); doi: 10.1117/12.777674
Show Author Affiliations
Didier Keymeulen, Jet Propulsion Lab. (United States)
Chris Peay, Jet Propulsion Lab. (United States)
David Foor, Jet Propulsion Lab. (United States)
Tran Trung, Univ. of California, Berkeley (United States)
Alireza Bakhshi, B&A Engineering Inc. (United States)
Phil Withington, Jet Propulsion Lab. (United States)
Karl Yee, Jet Propulsion Lab. (United States)
Rich Terrile, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 6959:
Micro (MEMS) and Nanotechnologies for Space, Defense, and Security II
Thomas George; Zhongyang Cheng, Editor(s)

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