A flexible underwater pressure sensor array for artificial lateral line applications
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2013
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| Online Access: | http://hdl.handle.net/1721.1/76831 |
| _version_ | 1826188834823471104 |
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| author | Yaul, Frank M |
| author2 | Jeffrey H. Lang. |
| author_facet | Jeffrey H. Lang. Yaul, Frank M |
| author_sort | Yaul, Frank M |
| collection | MIT |
| description | Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011. |
| first_indexed | 2024-09-23T08:05:46Z |
| format | Thesis |
| id | mit-1721.1/76831 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T08:05:46Z |
| publishDate | 2013 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/768312019-04-09T16:37:04Z A flexible underwater pressure sensor array for artificial lateral line applications Yaul, Frank M Jeffrey H. Lang. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Cataloged from student submitted PDF version of thesis. Includes bibliographical references (p. 81-83). This thesis develops a flexible elastomer-based underwater pressure sensor array. When mounted onto the hull of an aquatic vehicle, the array enables obstacle detection, identification and tracking, and can help the vehicle reduce its hydrodynamic drag by providing information about the surrounding ow. This thesis begins with the development of a carbon black-PDMS elastomer material set. Using the material set, a 4-point-probe resistive strain gauge is developed and combined with a pressure-concentrating PDMS diaphragm to create the MEMS-based pressure sensors. A one-dimensional array of 4 sensors is fabricated, and the dynamic response of the sensors is characterized and modelled. Based on the model, the operating conditions required for a linear sensor response are determined. This thesis ends with proof-of-concept underwater object and wave detection experiments demonstrating that the sensor can function as an artificial lateral line. The sensors exhibit a 1.38 . 10-³ fractional resistance change per 100 pascals, which yields a maximum pressure resolution of 1.5 pascals for a power consumption of 10 [mu]W per sensor, ignoring the power dissipated by the amplification circuitry and parasitic resistances. Each sensor is capable of transducing up to a 1 kPa pressure differential across its diaphragm, though the sensor may respond to signals of this amplitude at arbitrary underwater depth due to the use of a pressure equilibration scheme. The overall array has a 15 mm spatial resolution. An upper bound for the bandwidth of the diaphragms is calculated to be 940 Hz, ignoring viscous damping due to air, water, and the PDMS. Additionally, sensor operation while mounted to a hull with a 0.5 m radius of curvature is demonstrated. by Frank M. Yaul. M.Eng. 2013-02-13T21:49:20Z 2013-02-13T21:49:20Z 2011 2011 Thesis http://hdl.handle.net/1721.1/76831 825553709 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 83 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Yaul, Frank M A flexible underwater pressure sensor array for artificial lateral line applications |
| title | A flexible underwater pressure sensor array for artificial lateral line applications |
| title_full | A flexible underwater pressure sensor array for artificial lateral line applications |
| title_fullStr | A flexible underwater pressure sensor array for artificial lateral line applications |
| title_full_unstemmed | A flexible underwater pressure sensor array for artificial lateral line applications |
| title_short | A flexible underwater pressure sensor array for artificial lateral line applications |
| title_sort | flexible underwater pressure sensor array for artificial lateral line applications |
| topic | Electrical Engineering and Computer Science. |
| url | http://hdl.handle.net/1721.1/76831 |
| work_keys_str_mv | AT yaulfrankm aflexibleunderwaterpressuresensorarrayforartificiallaterallineapplications AT yaulfrankm flexibleunderwaterpressuresensorarrayforartificiallaterallineapplications |