Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer
Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2006
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| Online Access: | http://hdl.handle.net/1721.1/31098 |
| _version_ | 1811078848642547712 |
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| author | Meredith, Kara Susanne, 1978- |
| author2 | Bernard Antkowiak. |
| author_facet | Bernard Antkowiak. Meredith, Kara Susanne, 1978- |
| author_sort | Meredith, Kara Susanne, 1978- |
| collection | MIT |
| description | Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001. |
| first_indexed | 2024-09-23T11:06:21Z |
| format | Thesis |
| id | mit-1721.1/31098 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:06:21Z |
| publishDate | 2006 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/310982019-04-11T06:04:31Z Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer Meredith, Kara Susanne, 1978- Bernard Antkowiak. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001. Includes bibliographical references (p. 75-76). This thesis presents an analysis of the effect of mechanical coupling on the frequency behavior of the two oscillators in the SOA-3 micromechanical accelerometer. It also investigates the possible effect of the input acceleration on the degree of this mechanical coupling. A sensitivity study is also done to assess the dependence of the degree of mechanical coupling on the geometry of the beams that form the proof mass support system. By doing a modal analysis using both a Finite Element and a mass-spring model of the accelerometer, it is shown that mechanical coupling does exist between the two oscillators, and is a function of the input acceleration on the device. It is also shown that the effects of mechanical coupling on the frequencies of the oscillators are the greatest at the input acceleration where the oscillator's frequencies, if completely uncoupled, would approach the same value. Finally, several design changes are suggested that reduce the amount of mechanical coupling between the oscillators. by Kara Susanne Meredith. S.M.and S.B. 2006-02-02T18:47:50Z 2006-02-02T18:47:50Z 2001 2001 Thesis http://hdl.handle.net/1721.1/31098 49013585 eng 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 76 p. 2559356 bytes 2567428 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Meredith, Kara Susanne, 1978- Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| title | Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| title_full | Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| title_fullStr | Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| title_full_unstemmed | Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| title_short | Effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| title_sort | effects of mechanical coupling on oscillator frequency in a micromechanical accelerometer |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/31098 |
| work_keys_str_mv | AT meredithkarasusanne1978 effectsofmechanicalcouplingonoscillatorfrequencyinamicromechanicalaccelerometer |