Publication Details |
| Category | Text Publication |
| Reference Category | Conference papers |
| Title (Primary) | Characterization of reference materials for an economic calibration approach for low-cost soil moisture sensors |
| Title (Secondary) | Proceedings of the 10th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances ISEMA 2013, Weimar / Germany, September 25-27,2013 |
| Author | Kögler, S.; Wagner, N.; Zacharias, S.; Wollschläger, U. |
| Publisher | Kupfer, K.; Wagner, N. |
| Year | 2013 |
| Department | MET |
| Page From | 442 |
| Page To | 448 |
| Language | englisch |
| Keywords | soil moisture; low-cost sensor; calibration |
| UFZ wide themes | RU5; |
| Abstract | Wireless soil moisture sensor networks provide distributed observations of soil moisture dynamics with high temporal resolution as they typically involve a high number of sensors. Low-cost sensors are preferred for this application. These sensors most often show a sensor-to-sensor variability. Hence, a sensor-specific calibration is advantageous prior to field installation. Calibration methods relating sensor reading to reference permittivity described in the literature feature calibration media which are harmful to health and to the sensor. One less aggressive alternative is to use glass beads and ethylene glycol which is used by Decagon Devices. For this calibration it is essential to know the complex permittivity of the reference media. We will provide complex permittivity data for the reference media: glass beads, ethylene glycol and glass beads mixed with ethylene glycol. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=14288 |
| Kögler, S., Wagner, N., Zacharias, S., Wollschläger, U. (2013): Characterization of reference materials for an economic calibration approach for low-cost soil moisture sensors In: Kupfer, K., Wagner, N. (eds.) Proceedings of the 10th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances ISEMA 2013, Weimar / Germany, September 25-27,2013 MFPA, Institute of Material Research and Testing at the Bauhaus-University, Weimar, 442 - 448 |
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