Qt-eq15 Soil Water Potential Meter By Channel Technology

Equilibrium tensiometer is a new revolutionary soil water potential measurement instruments which has a number of patent protection. Water potential is from the soil extraction unit water need of energy under isothermal conditions , the unit is bar (1 bar = 100kPa). In the soil, water potential is a major factor in determining the direction and speed of the water flow, which is the only sign of effectiveness of the soil moisture to plants. The water potential of different soil can be compared with each other directly. Accurate determination of the water potential has very important significance for the research, such as flow of soil moisture, drought physiology of plants, automatic control of irrigation, soil moisture monitoring, etc.

Principle:-
EQ15 consists of two parts: Balance sensor and moisture sensor. Balance sensor consists of a special material, this material has two characteristics: moisture content and very stable relationship between the water potential, highly permeable. Good permeability to ensure its water potential and soil were measured simultaneous changes. Moisture sensor measure the water content of balance sensor at any time, because the relationship between water content and water potential is known, through the moisture can get soil water potential. Moisture sensor is fixed in the balance sensor, Probe surroundings steady, thus avoiding the effects of soil density, stones and roots ensure the accuracy of soil water.