Analytische Chemie
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Knowing the state of the setting process of concrete in buildings or the moisture level of old
walls can be crucial in determining further steps in the construction or restoration process. Small
2.4 GHz modules can be either embedded or applied on the surface to determine the moisture
distribution in material. Common modules, that are based on the highly available Bluetooth
Low Energy standard, emit electromagnetic waves, whose signal strength gets dampened by
water molecules. This effect serves as the basis on determining the moisture level in material.
We will show how to apply this method in a meshed sensor network for online monitoring.
Knowing the state of the setting process of concrete in buildings or the moisture level of old
walls can be crucial in determining further steps in the construction or restoration process. Small
2.4 GHz modules can be either embedded or applied on the surface to determine the moisture
distribution in material. Common modules, that are based on the highly available Bluetooth
Low Energy standard, emit electromagnetic waves, whose signal strength gets dampened by
water molecules. This effect serves as the basis on determining the moisture level in material.
We will show how to apply this method in a meshed sensor network for online monitoring.