Amplitude and frequency demodulation controller for MEMS accelerometer
Name
48983597-MIT.pdf
Description
Full printable version
Size
4.9 MB
Format
Adobe PDF
Checksum (MD5)
218d60b642d46abd6174579cb951c3a7
Author(s)
Brooks, Lane Gearle, 1975-
Advisor(s)
Paul Ward and Rahul Sarpeshkar.
Alternative Title
Amplitude and frequency demodulation controller for microelectromechanical systems accelerometer
Date Issued
2001
Publisher
Massachusetts Institute of Technology
Abstract
Draper Laboratory is developing a high precision MEMS accelerometer. This thesis describes and analyzes the electronics which produce the acceleration estimate and control the actuators within the sensor. The Vector Readout method of amplitude and frequency demodulation is described and shown to be a high precision, environmentally stable method of demodulation. The Vector Readout method of demodulation uses a Hilbert Transform filter and the CORDIC algorithm to simultaneously estimate both the amplitude and phase of a signal. A feedback controller is designed to hold the oscillation of a mass resonator at a constant amplitude.
Description
Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
Includes bibliographical references (p. 121-122).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
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