The SoilVue™ One Profiler measures volumetric water content (VWC), electrical conductivity (EC), and temperature at six depths (over 0.5 m) or nine depths (over 1 m), depending on the option selected. This profiler is designed for environmental researchers and environmental monitoring network operators, and is ideal for long-term outdoor operation and for applications that require highly accurate measurements.
The SoilVue One Profiler is powered by Campbell TrueWave™ TDR. It includes sensors built into threads, which improves sensor contact with the soil and prevents air-gap errors. The threaded design also allows it to screw into a hole created by a standard 2 in. hand auger. This simple installation procedure reduces cost, complexity, and disturbance of the soil.
The SoilVue One consists of TDR circuitry connected to a series of six or nine helical waveguides that make up part of the overall threaded design. The TDR circuitry generates a short rise time electromagnetic pulse that is applied to the helical wave guides. The elapsed two-way travel time of the applied pulse is used to calculate the dielectric permittivity of the surrounding media and determine the volumetric water content using a mixing model.