Journal
ELEKTRONIKA IR ELEKTROTECHNIKA
Volume 18, Issue 10, Pages 25-28Publisher
KAUNAS UNIV TECHNOLOGY
DOI: 10.5755/j01.eee.18.10.3055
Keywords
Soil moisture; capacitance; conductivity; impedance; soil measurements
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Funding
- Agency for Science, Innovation and Technology [VP2-1.3-UM-05-K-01-065]
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During geological soil examination humidity of the soil was decided to be measured using interdigital capacitance sensors. Using software COMSOL v4.2 the sensors were modelled and optimal sizes for use with AD 5933/34 chip were selected. Electrical impedance has proven to be the most suitable parameter for humidity measurement. Optimal probing frequency, geometry of the sensor and electrical impedance to humidity function were modelled.
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