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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 23:40, 7 November 2010
, 23:40, 7 November 2010→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.
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.
[[File:Conductivity rainwater.jpg]]
[[Image:Conductivity rainwater.jpg|200px]]
Use the graphing software [[Activities/TurtleArt/Using_Turtle_Art_Sensors#Graphing_the_output|shown previously]] but set the turtle y to resistance/50 to scale to the screen size.
Use the graphing software [[Activities/TurtleArt/Using_Turtle_Art_Sensors#Graphing_the_output|shown previously]] but set the turtle y to resistance/50 to scale to the screen size.