PiCUS TreeQinetic
The tree pulling test is performed to get information about the breaking stability of the trunk and the stability of the roots. It is used to assess a tree’s stability with regard to stem fracture and uprooting precisely and non-invasively.
In a pulling test, a load (substituting for the wind) is exerted on a tree using a winch and a steel cable. The reaction of the stressed tree under this defined load is measured with high resolution devices (elastometer and inclinometer), and the data obtained are compared with those of sound trees. The major components to be considered in such calculations are the wind-load (the surface of the load-bearing structure, tree height, etc.) and the material properties of green wood.
Feature
• Easy, wireless measurement and continuous data transmission
• User can calculate results autonomously using the ArboStat software
• Easy-to-understand graphical results
• Direct information about the breaking stability of the stem
• Direct information about the stability of the root system
Spesification
Elastometer
Resolution: 0,1 µm
Measuring range: +/- 2 mm
Accu capacity: ~ 20 h bei 20°C (radio on)
TreeQinetic Elastometer @ work
Inclinometer
Resolution: 0,005°
Accuracy: 0,005°
Measuring range: +/- 15°
Accu capacity: ~ 20 h bei 20°C (radio on)
TreeQinetic Inclinometer @ work
Forcemeter
Resolution: 0,1 kN
Measuring range: 0 – 40 kN
Accu capacity: ~ 20 h bei 20°C (radio on)
TreeQinetic Forcemeter @ work
Anemometer
One further option of the TQ system is the “dynamic wind sway motion logging” function. This requires a wind-meter (anemometer) to measure wind speed. At present we can only record the sway motion (inclination of root plate and strain of marginal fibres and wind speed). It is not yet possible to obtain direct stability information from this data.
Resolution wind speed: 0,1 m/s
Measuring range wind speed: 0 – 30 m/s
Resolution Wind direction: 16 Windrichtungen (22,5°)
Measuring range Wind direction: 360°
Accu capacity: ~ 10h
Met mast, Wind vane and Anemometer
Communication Unit
Accu capacity: ~ 20 – 40 h (depending on connection to PC (Bluetooth or USB))
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