Difference between revisions of "Soil moisture - capacitance (TMS)"
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− | [[ | + | |
+ | [[File:Tms probe.png|thumb|right|Longitudinal view on TMS probe]] | ||
+ | [[File:TMS porbe installed.png|thumb|right|View on installed TMS probe]] | ||
==Parameter to be measured:== | ==Parameter to be measured:== | ||
− | Soil moisture, soil and air temperature | + | Soil moisture, soil, surface and air temperature |
==Method:== | ==Method:== | ||
Line 7: | Line 9: | ||
==Equipment:== | ==Equipment:== | ||
− | + | * temperature measurement with sensor MAXIM/DALLAS Semiconductor DS7505U+, with resolution of 0.0625 °C and with accuracy of ±0.5 °C | |
− | + | * soil moisture measurement based on capacity technique in the frequency of 100-200MHz | |
− | + | * integrated data loggers of 32MBit | |
+ | |||
==Advantages:== | ==Advantages:== | ||
+ | * stand alone system | ||
* cheap | * cheap | ||
* Easy to install | * Easy to install | ||
Line 17: | Line 21: | ||
* Calibration needed | * Calibration needed | ||
* Small measurement volume compared to other sensors | * Small measurement volume compared to other sensors | ||
− | * | + | *Actual Software is less comfortable |
− | * | + | *Connection between readout unit and probe can be improoved |
==What to watch out for:== | ==What to watch out for:== | ||
Line 31: | Line 35: | ||
Projects that used the above equipment: | Projects that used the above equipment: | ||
+ | * [http://www.comtess.uni-oldenburg.de/ COMTESS] | ||
* [http://teodoor.icg.kfa-juelich.de/overview-de TERENO] | * [http://teodoor.icg.kfa-juelich.de/overview-de TERENO] | ||
Other related web sites: | Other related web sites: | ||
*[http://www.tomst.com/site/de/tms.html TOMST®] | *[http://www.tomst.com/site/de/tms.html TOMST®] | ||
+ | *[http://www.tomst.com/tms/Home.html TMS3 TOMST Measuring System - Station for spatially distributed measurements of soil moisture and ambient temperature in vast fields] | ||
+ | *[http://www.tomst.com/tms/Software.html TMS software and calibration set for typical soils] | ||
+ | |||
+ | ==References== | ||
+ | *Wild, J., Kopecký, M., Zmeškalová, J., Hadincová, V., Trachtová, P., Nováková, O., Štípek, A., Šanda, M., Haase, T., Field monitoring of microclimate: new combined thermal and soil moisture standalone unit | ||
+ | *[http://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20130202.15.pdf Hernández, J.A.C. et al., 2013. Unsaturated volcanic tephra and its effect for soil movement in El Salvado. Earth Science 2(2), 58-65, DOI: 10.11648/j.earth.20130202.1] | ||
+ | *[http://botanika.prf.jcu.cz/thesis/pdf/SvetlikovaP_Mgr13.pdf Světlíková, P., 2012. Impact of local heat leakage on vegetation and participation of non-native species. Master thesis, České Budějovice, CZ] | ||
− | |||
[[Category:Equipment]] | [[Category:Equipment]] | ||
[[Category:Soil Moisture]] | [[Category:Soil Moisture]] | ||
[[Category:Temperature]] | [[Category:Temperature]] |
Latest revision as of 16:16, 8 December 2016
Parameter to be measured:
Soil moisture, soil, surface and air temperature
Method:
Capacitance
Equipment:
- temperature measurement with sensor MAXIM/DALLAS Semiconductor DS7505U+, with resolution of 0.0625 °C and with accuracy of ±0.5 °C
- soil moisture measurement based on capacity technique in the frequency of 100-200MHz
- integrated data loggers of 32MBit
Advantages:
- stand alone system
- cheap
- Easy to install
Disadvantages:
- Calibration needed
- Small measurement volume compared to other sensors
- Actual Software is less comfortable
- Connection between readout unit and probe can be improoved
What to watch out for:
- Careful installation, air gaps have a sustainable influence on the measurement compared to other sensors because of the small measurement volume
Problems/Questions:
Price:
80 € (2013, Europe)
Links
Projects that used the above equipment:
Other related web sites:
- TOMST®
- TMS3 TOMST Measuring System - Station for spatially distributed measurements of soil moisture and ambient temperature in vast fields
- TMS software and calibration set for typical soils
References
- Wild, J., Kopecký, M., Zmeškalová, J., Hadincová, V., Trachtová, P., Nováková, O., Štípek, A., Šanda, M., Haase, T., Field monitoring of microclimate: new combined thermal and soil moisture standalone unit
- Hernández, J.A.C. et al., 2013. Unsaturated volcanic tephra and its effect for soil movement in El Salvado. Earth Science 2(2), 58-65, DOI: 10.11648/j.earth.20130202.1
- Světlíková, P., 2012. Impact of local heat leakage on vegetation and participation of non-native species. Master thesis, České Budějovice, CZ