Evaluation of the performance of soil moisture sensors in laboratory-scale lysimeters
| dc.contributor.author | Proulx, Sophie | en_US |
| dc.date.accessioned | 2007-07-12T19:44:10Z | |
| dc.date.available | 2007-07-12T19:44:10Z | |
| dc.date.issued | 2001-08-01T00:00:00Z | en_US |
| dc.degree.discipline | Biosystems Engineering | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | Soil moisture sensors were evaluated in laboratory-scale lysimeters. The performances of tensiometers, granular matrix sensors (GMS), capacitance sensors, phase transmission sensors, and of a portable capacitance probe and a frequency-domain reflectometry (FDR) sensor was observed in loam (31.5% sand, 45.2% silt, and 23.1% clay) and silt loam (20% sand, 54% silt, and 26% clay) of the Ramada Series. The experiment was conducted over two drying cycles in loam for moisture contents decreasing from 34.0 to 17.0% by volume for the 1999 trial and decreasing from 43.1 to 20.0% by volume for the 2000 trial and over a single drying cycle in silt loam for moisture decreasing from 45.8 to 19.5% by volume. The lysimeters were designed with hydraulic weighing systems to facilitate continuous monitoring of the soil moisture content. A conversion equation was developed, based on texture-specific calibration curves published by the manufacturer, to calibrate the readings of the Aqua-Tel sensors. The procedure followed for converting the readings of the Aquaterr probe was also partially developed by the experimenter to obtain more accuracy. (Abstract shortened by UMI.) | en_US |
| dc.format.extent | 3930840 bytes | |
| dc.format.extent | 184 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.format.mimetype | text/plain | |
| dc.identifier.uri | http://hdl.handle.net/1993/2742 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.title | Evaluation of the performance of soil moisture sensors in laboratory-scale lysimeters | en_US |
| dc.type | master thesis | en_US |