Utilizing electric resistivity measurements, the system, equipped with up to 32 sensors encircling the trunk, can detect the size and location of actively fungi-affected regions. It allows the visualization of both seasonal and daily changes, as resistivity increases or decreases in response to fluctuations in ionic concentration, enabling the identification of fungal attacks even in their early stages.
Position the resistivity meter on the tree, measure the circumference, and determine the appropriate shape (circular, elliptical, or irregular). Place electrodes at the designated positions or measure their locations, entering the data into the computer. Initiate the measurement on the computer, refraining from touching the tree during this process and avoiding measurements parallel to the resistivity measurement. Opt for triangulation parameters and run the iterations, allowing the program to compute the resistivity map for the chosen cross-section.
Excitation voltage: 5-50V, adjustable in 5V steps
Current measurement range: 0-20mA; 0-400µA; 0-40µA
The length of one basic measurement: 640ms
Amplifications: 1, 5, 20, 100
Inbuilt divider: 1:10
Power supply: Built in 5V/5000mAh Li-ion Power Bank
Continuous operation time*: Approximately 2 hours
Total weight**: 6 kg
PC connection: LEMO-USB cable or Bluetooth
Total measurement time of one tree***: 45 minutes
Operating temperature range: 0-40 °C
*on average diameter trees
**without PC, including case, hammers
***one section, including assembly, geometry registration, measurement