Introduction
⚫
7
How the WET150 Sensor works
Measurement Principle
When you insert the WET150 Sensor into soil and
take a reading...
...it generates a 100 MHz signal...
...which is applied to the pins and produces a small
electromagnetic field within the soil.
The water content, electrical conductivity, and
composition of the soil surrounding the pins...
...determines its
dielectric properties
.
➔
The WET150 sensor detects these dielectric
properties from their influence on the
electromagnetic field and calculates ...
…
Soil Moisture
and
Pore Water Conductivity
.
It also records
Temperature
and uses that to
improve the accuracy of the other measurements
… and sends the results, on demand, to either an
WET150 meter, GP2 logger-controller
or other SDI-12 enabled device