2026-09-24T15:05:54Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/89382026-06-06T01:04:38Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Paul Ward and Rahul Sarpeshkar.
Brooks, Lane Gearle, 1975-
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2005-08-23T16:30:47Z
2005-08-23T16:30:47Z
2001
2001
http://hdl.handle.net/1721.1/8938
48983597
Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
Includes bibliographical references (p. 121-122).
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.
by Lane Gearle Brooks.
M.Eng.
S.B.
122 p.
8305243 bytes
8305001 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Amplitude and frequency demodulation controller for MEMS accelerometer
Amplitude and frequency demodulation controller for microelectromechanical systems accelerometer
Thesis
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<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.</Abstract>
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