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Title
Designing and Troubleshooting a Signal Acquisition System for Vertically Aligned Piezoelectric Nanowire Sensors
Description
The Honors Thesis involved the use of vertically-aligned, piezoelectric nanowire sensor arrays configured by Dr. Henry A. Sodano and Dr. Aneesh Koka from the University of Florida, in order to acquire acceleration data. Originally, the project was focused on interfacing and calibrating the barium titanate (BaTio3) sensors to measure wall shear stress, a fluid dynamic characteristic. In order to gain an understanding of these novel piezoelectric sensors, the experiments performed by Sodano and Koka were to be investigated, replicated, and results reproduced. After initial trial phases, signals failed to be consistently measured from the sensors and the project's emphasis was re-defined. The outlined goals were 1) to re-design the initial system used for signal acquisition, 2) test the improved signal acquisition system, 3) successfully measure output signals from the BaTiO3 nanowire sensors, and 4) determine the cause for inconsistent signal measurements from the piezoelectric nanawire sensors. Following a detailed review of the previous experimental procedures and the initial signal acquisition system, an improved acquisition system was designed and its expected behavior was tested and verified. Despite the introduction of the improved acquisition system, voltage outputs were unable to be measured as a function of shaker table acceleration. It was impossible to verify the effect of the improved signal acquisition system on the measured BaTiO3 nanowire sensor output. Based on an analysis of data collected using a commercial 3-axis acceleromoeter, it is hypothesized that the BaTiO3 nanowire sensors were broken after the first experimental trial due to an excessively applied force from an external source (i.e. shaker table, improper handling during experimentation, and/or improper handling during transportation).
Date Created
2014-05
Contributors
- Thomas, Jonah (Author)
- Frakes, David (Thesis director)
- LaBelle, Jeffrey (Contributor)
- Barrett, The Honors College (Contributor)
Topical Subject
Resource Type
Extent
36 pages
Language
eng
Copyright Statement
In Copyright
Primary Member of
Series
Academic Year 2013-2014
Handle
https://hdl.handle.net/2286/R.I.25345
Level of coding
minimal
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System Created
- 2017-10-30 02:50:57
System Modified
- 2021-07-16 10:38:41
- 3 years 2 months ago
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