ArborElectro Impedance Tomograph
The ArborElectro Impedance Tomograph is able to detect the size and location of active fungi attacked regions in the trunk non-destructively. It works based on electric resistivity measurements between several sensors around the trunk. The basic measurement principle is that resistivity increases/decreases if there is a change in the concentration of ions between two sensors. Fungi attacks even in very early stages can be determined.
- Place the resistivity meter onto the tree.
- Measure the circumference and decide the proper shape (circular, elliptic or irregular). Place the electrodes onto the tree at the proper positions or measure their positions. Enter the data to the computer.
- Start the measurement on the computer. During the measurement do not touch the tree. Do not measure other conditions parallel to the resistivity measurement.
- Choose triangulation parameters and run the iterations. The program will calculate the resistivity map of the selected cross section.
- GeoPic-32 Multielectrode Resistivity Meter
- LEMO-USB connection cable (with 4 needles) to connect the Multielectrode Resistivity Meter to computer
- LEMO-USB charger cable (with 3 needles) to charge the Multielectrode Resistivity Meter
- 4 pcs. electrode connecting cable with 8 crocodile clips on each
- 50 pcs. stainless steel needles (as electrodes) for measurements; diameter: 1.5 mm, length: 63 mm
- Steel hammer
- 5 pcs. screws to fix the Multielectrode Resistivity Meter onto the tree
- Electrode remover tool
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
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