Measurement through walls and foils with FMCW radar level transmitters

Measurement through walls and foils In the case of plastic containers, it is also possible to realize the filling level measurement without modification of the tank through the container casing. The plastic plate inserted here simulates the container cover. Behind the reflection of the plastic plate, the reflection of the water surface in the spectrum is clearly visible. The reflection of the plastic plate can be minimized by an oblique positioning, simulating, for example, an oblique tank roof. As expected, the 24 GHz system also shows a comparable behavior. Here also, the reflection on the surface of the water is clearly visible As expected, the inclined position of the plastic plate also reduces the reflection on the simulated tank roof. Both radar systems are not only suitable for the measurement of low reflective products, but are also able to measure through tank walls or tank roofs made of plastic. Such applications are found, for example, in bioenergy plants in the level measurement in the fermenter, where the measurement typically takes place through a plastic foil. Watch the whole video "FMCW Radar Level Measurement: 24 GHz and 80 GHz technology in comparison": https://www.youtube.com/watch?v=ydJYsOaOe3I&t=138s