Agriculture is closely linked to the effects of rain on soils. The resulting phenomena, such as infiltration, runoff or erosion, do not depend solely on the structure and texture of the watered area but also on the type of rainfall in the area concerned. The measurement and analysis of these phenomena inevitably require a rigorous simulation of the rains as they appear in reality. The rain simulator associated with the infiltrometer, EID320, has been designed to meet this demand.
The sprinkler system is mounted at the top of a metal structure of height 4 meters. Controlled by micro-processor, a motor drives in a pendulum motion a sprinkler supplied with water at constant pressure and flow. A simple modification of the sweep angle of this organ varies the surface of watered soil and thus the intensity of the rain received by a test plot of 1 m².
The kinetics of the drops is perfectly respected. The programmed movement of the sprinkler makes it possible to simulate very diverse and complex rains.
The gantry is equipped with telescopic legs and can be placed in a low position (height 2.3 meters) for laboratory tests.
The EID340 rain simulator includes :
- EID330 : micro-processor sprinkler system
- EID332 : chassis with side protections
- EID334 : water supply device.
These elements are also available separately, as is the EID 320 Infiltrometer :
1 - Battery charger;
2 - Battery 12 V - 40 A (not supplied);
3 - Water reserve;
4 - Motor pump with valve and solenoid valve;
5 - Manometer 0 to 1 bar;
6 - Spray nozzle; 7 - Control case; 8 - Gantry (tarpaulins included)