Publication Date
4-18-2021
Document Type
Dissertation/Thesis
First Advisor
Liu, Lichuan, 1945-
Degree Name
B.S. (Bachelor of Science)
Legacy Department
Department of Electrical Engineering
Abstract
Trees play an essential role of providing oxygen and taking in the increasing carbon dioxide in the atmosphere. They can live thousands of years, but their lives can be cut short due to unexplained circumstances. The Morton Arboretum’s Center for Tree Science speculates that acoustic emissions (AE) can help resolve these mysteries by detailing and quantifying the stress waves inside a tree to better understand the health and well-being of trees. For this goal, an electrical circuit and accompanying mechanical housings were designed to support an AE sensor. The AE sensor system was tested in Northern Illinois University’s Digital Signal Processing Lab’s anechoic chamber. During testing, the system recorded three distinct responses from each mode of testing. While the device displayed an ability to serve as a platform to collect AE readings, improvements to the mechanical housing for eventual long-term deployment and expansions to the circuit to support more detailed data collection methods can be made.
Recommended Citation
Li, Theresa; Molina Hoyos, Esteban; and West, Charles, "Acoustic Emissions Tree Monitoring System" (2021). Honors Capstones. 101.
https://huskiecommons.lib.niu.edu/studentengagement-honorscapstones/101
Main article (1.989Mb)
Capstone Title, Approval Page & Abstract - Theresa Li.pdf (93 kB)
Submission Info (93.71Kb)
Extent
58 pages
Language
eng
Publisher
Northern Illinois University
Rights Statement
In Copyright
Rights Statement 2
NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.
Alt Title
Acoustic Emissions and Phenological Acoustics Monitoring System
Media Type
Text
