TreeSense Wiki

Case Study: Schorndorf Tests Sensors for Improved Irrigation Planning

The city of Schorndorf aims to make the maintenance of its urban trees increasingly digital and data-driven. In the future, technologies such as GPS-assisted route planning and AI-based software will help organize workflows more efficiently and allocate resources more effectively. The use of TreeSense sensors to monitor water requirements and tree health marks the first step in this direction. Project Overview As part of the […]

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How does an FDR sensor work?

The FDR sensor is a sensor used to determine the volumetric water content in the soil. FDR stands for Frequency Domain Reflectometry. The sensor measures the soil’s ability to store electrical charge and uses this to determine the water content. What is charge storage capacity? Capacitors are used to store electrical charge. A capacitor consists of two conductors […]

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TreeSense Pulse: What is the TreeSense Moisture Index?

Prerequisites: TreeSense Pulse: Electrical Resistance Measurement Explained A brief recap of resistance measurement in the Pulse Sensor Electrical resistance (measured between two conductive screws in the xylem) is a strong indicator of moisture content in the branch. Simply put: dry wood has high resistance, while moist wood has low resistance. However, resistance is also influenced by temperature and tree species-specific […]

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The retention curve

The retention curve illustrates the relationship between water content and soil water tension. This relationship is characteristic of each soil type and is influenced by various factors. One of the most important factors is the pore size distribution. This is closely related to the soil type, which is why it is common to specify typical retention curves for different soil types. The figure shows retention curves for sand, silt [...]

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