2DVD Original Manufacturer Literature (English PDF)
Original English manufacturer literature describing measurement principles, specifications and configurations.
View resource →Overview
The JOANNEUM RESEARCH 2DVD records precipitation particles with two high-speed cameras viewing from orthogonal directions. It derives particle size, shape, orientation and fall velocity. An outdoor optical unit, indoor computer and acquisition / analysis software provide individual particle images and statistical data for precipitation microphysics.
Key features
- Two high-speed camera views capture front and side profiles of each particle.
- Measures individual particle dimensions, shape, orientation and vertical fall velocity, including non-spherical particles.
- Analyses size distributions, precipitation rate and microphysics of rain, snow and hail.
- Acquisition and analysis software is included, with configurable integration intervals and particle / statistical views.
- An open interface supports user-defined particle models and further data analysis.
- Supports weather-radar and raindrop-scattering research, as well as spray and irrigation studies.
Technical specifications
| Parameter | Specification |
|---|---|
| Optical resolution | Approximately 0.17 mm |
| Vertical size resolution | Better than 0.17 mm for vertical velocities below 10 m/s |
| Vertical velocity accuracy | Better than 4% for vertical velocities below 10 m/s |
| Effective sampling area | Approximately 100 × 100 mm² |
| Integration interval | 15 seconds to 12 hours |
| Outdoor optical unit dimensions | 880 × 880 × 250 mm |
| Outdoor optical unit weight | 80 kg, excluding stands |
| Indoor power equipment | 600 W rated power supply, not constant system consumption |
Equipment and configuration
System configuration and options
- The standard system comprises the outdoor optical unit, indoor computer, power supply, cables and acquisition / analysis software.
- User-defined models, custom analysis and integration requirements can be specified for the research task.
Applications
Precipitation microphysics, weather radar, rainfall-runoff and flood research, precipitation effects on traffic and communication links, and spray or irrigation studies.
Selection
Specify particle morphology, velocity and analysis requirements, then confirm installation clearance, indoor computer location and cable routing.