Resistor which reacts to moisture in soil or water.

AI Thread Summary
The discussion focuses on finding a resistor that responds to moisture levels in soil for a DP lab project. Participants explore the idea of using soil itself as a resistive element, suggesting that its conductivity varies with moisture content. They seek a resistor that has a direct proportionality to soil moisture, which could enhance measurement accuracy. The conversation references a specific resource for further information on the topic. This exploration aims to improve understanding and functionality in measuring soil moisture.
Scarlet_pat
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my friend and i are doing a DP lab, we are trying to find a resister which reacts to water/ moisture in soil. a resistor that is directly proportional to the moisture in the soil

thank you.
 
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Could the soil itself be a resistive element?

http://www.ictinternational.com.au/appnotes/ICT227.htm
 
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