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Circumference Dendrometer 1 (DC1)

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Circumference Dendrometer 1 (DC1)

The Circumference Dendrometer 1 is the simpler version for the measurement of circumference changes of plants. The sensor is mounted on a wire cable with a very low coefficient of thermal expansion on the plant. The slide rings reduce the friction between the wire cable and the tree bark. They also decrease the pressure of wire cable on the tree.

Please note the essential difference between the various circumference dendrometers.

Advantages

■ Suitable for diameter 5-30 cm

■ No injury to plants

■ Easy installatio

■ Stability against wind, snow, falling small branches and small fruits

■ Readings directly correspond to the circumference changes

Disadvantages

■ Because of the tension of the wire cable is applied in the tangential direction the pressure of the wire cable to the tree depends on tree size. The smaller the tree, the greater the pressure. Thus the measured data between trees of different diameters are usually not comparable. In such cases, we recommend the use of DC2.

 

Delivery

■ Complete with 5 m cables and 1 m wire cable

 

Options / Ordering Information

■ Cable extension (please specify in meters)

■ Extension of the wire cable (please specify in meters)

■ Data Logger

 

Technical specifications


NameCircumference Dendrometer 1 (DC1)
Suitable for tree sizeDiameter 5-30 cm
Range of the sensor11 mm
Accuracy±1.5 μm ± 0,12% (CR1000 Logger)
Resolution0.2-2.6 μm (dependent on used data logger)
Linearity1%
Thermal expansion coefficient of the wire cable<1,4 ×10-6/K
Thermal expansion coefficient of the sensor<0,1 μm/K
Operating conditionsAir temperature: -30 - 40° C, air humidity: 0-100%



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