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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 00:09, 8 November 2010
, 00:09, 8 November 2010→Measuring Soil Moisture
==Measuring Soil Moisture==
==Measuring Soil Moisture==
Two probes into the soil measured in resistance mode. Only a few cm of wire are required to bring soil within the resistance range of 700 ohms to 14k ohms
Two probes into the soil measured in resistance mode. Only a few cm of wire are required to bring soil within the resistance range of 700 ohms to 14k ohms
==Measuring Water Salinity==
Place two copper wires into a glass of water. Experiment with your water and wire diameter, I was able to get a measurement of 5k ohms with 12cm of wire in tank water.
==Links==
==Links==