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Developing a wireless sensor network of soil heat pulse probes using Arduino technology

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Title: Developing a wireless sensor network of soil heat pulse probes using Arduino technology
Author: Kaminski, Olivia
Department: School of Environmental Sciences
Program: Environmental Sciences
Advisor: Warland, Jon
Abstract: Soil thermal properties and soil moisture are important when characterizing energy and water exchanges below the surface and between the surface and the atmosphere. An existing network of soil heat pulse probes (HPPs)for soil thermal property and soil moisture measurements is prone to low spatial resolution. In this study, a newly developed low-cost distributed wireless HPP network consisting of a coordinator unit and independently operated HPP units is presented. Communication between the coordinator unit and the independent HPP units is conducted through Arduino microcontrollers and Digi XBEE Radios for real time data retrieval. The proposed independent HPP units were validated against the existing network of HPPs through lab tests in a dry sand. Noise tests were conducted to assess the resolution of the HPP measurement method. Overall, the developed independent HPP units performed well and good agreement was found compared to the existing network of HPPs.
URI: http://hdl.handle.net/10214/17467
Date: 2019-09
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