| ??? 10/27/05 08:36 Read: times |
#103015 - Water for a short while and compare Responding to: ???'s previous message |
Erik,
I supposed that one non-calibration method would be to make a soil resistance measurement, water for a few minutes and make a second soil resistance measurement. If the sensor was near the surface it should change quite radically after a little watering only if the additional water made a significant change. This method could be self learning so that after a few "test runs" the micro can self-calibrate for the soil conditions and get smarter, eventually not having to do any more pre-watering. Am I making sense? Cheers from New Zealand where I have never seen a sprinkler (but had to clean bugs out of plugged sprinkler heads all the time in Riverside, California). Bert |
| Topic | Author | Date |
| soil dampness | 01/01/70 00:00 | |
| Conductivity? | 01/01/70 00:00 | |
| Conductivity | 01/01/70 00:00 | |
| addendum | 01/01/70 00:00 | |
| Nutsy idea? | 01/01/70 00:00 | |
| Configuration/calibration | 01/01/70 00:00 | |
| that would not be calibration | 01/01/70 00:00 | |
| humidity | 01/01/70 00:00 | |
| Water for a short while and compare | 01/01/70 00:00 | |
| Another idea | 01/01/70 00:00 | |
| Spatially Distributed Soil Measurements | 01/01/70 00:00 | |
| I needed that | 01/01/70 00:00 | |
| There is Yet Hope | 01/01/70 00:00 | |
| soil dampness | 01/01/70 00:00 | |
| Gypsum block sensor | 01/01/70 00:00 | |
Capacitance. | 01/01/70 00:00 |