A few weeks back, I posted a question about measuring the level of moisture
in the ground (so I could control my sprinkler system accordingly). "The
Captain" sent me a schematic that did this using a Whetstone Bridge to
measure the conductivity.
A friend then suggested that I do a simpler thing and just measure the
resistance, and see what kind of values I got, and how it changed over time.
This seemed reasonable, so I bought a couple of 12" galvanized spikes at
Home Depot, hammered them...
Measuring ground moisture level via conductivity
in the ground (so I could control my sprinkler system accordingly). "The
Captain" sent me a schematic that did this using a Whetstone Bridge to
measure the conductivity.
A friend then suggested that I do a simpler thing and just measure the
resistance, and see what kind of values I got, and how it changed over time.
This seemed reasonable, so I bought a couple of 12" galvanized spikes at
Home Depot, hammered them...
Measuring ground moisture level via conductivity