DV Vertical Dendrometer
The DV Vertical Dendrometer is for the measurement of vertical changes in stem dimension or stem curvature.
Suitable for the measurement of trees with a diameter greater than 8 cm, the measuring range is 11 mm, with a linearity of less than 1%.
Details
Specifications
Details
- Complete with 5 m Sensor Cable, extendable to 100 m.
- Cable configuration: bare ended.
- Complete with 1 m Special Wire-Cable
Specifications
| Sensor model name | Vertical Dendrometer (DV) |
| Scope of application | Stems or branches |
| Suitable for diameter | 5 – 32 cm |
| Special features/limitations | 2x trunk screws for mounting |
| Measurement range | 11 mm linear |
| Resolution | Data logger dependent e.g.:
CR300 series: 0.01 µm Dendrometer logger DL18: 0.2 µm |
| Accuracy | Dendrometer dependent: max. ± 4.5% of the measured value (stable offset)
Data logger dependent e.g.: CR300 series: ± (0.04% of the measured value + 0.3 µm) Dendrometer logger DL18: ± (0.1% of the measured value + 0.45 µm) |
| Output signal | Analogue, 0V to Vex (excitation supply voltage) |
| Temperature drift of the sensor | < 0.2 µm/°C in the whole measurement range |
| Temperature coefficient of the stem embracing cable wire | < 1.4 ×10-6/K |
| Linearity | < 1% |
| Operational conditions | Normal outdoor field conditions, -25 to 70 ° C, 0 to 100% relative air humidity; unsuitable underwater and below snow cover |
| Weight (sensor without cable) | 13 g |
| Power supply | Vex (! stabilized !) 0.5 to 10 VDC,
Power consumption max. 0.28 µWh per measurement |
| Material | Stainless steel and aluminium |
