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JB Hyperspectral Devices - Model RoX Reflectance Box -Automated Field Spectroscopy System
The RoX Reflectance Box is an automated field spectroscopy device developed through a collaboration between the Jülich Research Center and the University Milano Bicocca's Remote Sensing of Environmental Dynamics Laboratory. It is designed for long-term, unattended hyperspectral measurements of reflected radiance, solar radiance, and reflectance. The core component is the Flame spectrometer from Ocean Optics, which covers the visible to near-infrared region (300-950 nm). With a rugged, weatherproof housing, RoX is suitable for various applications such as vegetation monitoring and assessing water quality, snow, and ice properties. It features automatic signal optimization to adapt to varying light conditions and offers both manual and autonomous measurement modes. The device supports RS232 cable and wireless interfaces, and can be powered by batteries or solar panels, ensuring easy deployment in remote areas with minimal energy requirements.The reflectance box (RoX) is a robust and easy tool to collect hyperspectral time series of your environmental research area. Fully autonoumus operation, a rugged weatherproof design paired with low power consumption makes it your uncomplicated companion for all kind of reflectance observations.
RoX is an automated field spectroscopy device capable of collecting unattended, continuous, long-term hyperspectral measurements.
It represents the evolution of prototypes such as Multiplexer Radiometer Irradiometer (MRI), SFLUOR box and SIF-System developed from a collaboration between Jülich Research Center and the Remote Sensing of Environmental Dynamics Laboratory of the University Milano Bicocca. The basic routines of the RoX are based on SPECY (Forschungszentrum Jülich, IBG-2: Plant Sciences).
The RoX is designed for long term measurements of solar radiance, reflected radiance and reflectance. Its robustness and flexibility make the RoX suitable for several application (e.g. vegetation monitoring, water quality, snow and ice properties).
The core of the system is the Flame spectrometer from Ocean Optics covering the Visible/Near Infrared region (300- 950 nm). Upward and downward channels of RoX allow to sequentially measure the solar irradiance and the reflected radiance from the canopy.
OPTIC
Wavelength range: VIS-NIR: ~ 400–950 nm (other options also available on demand)
Spectral Sampling Interval (SSI): ~ 0.65 nm
Spectral resolution (FWHM): ~ 1.5 nm
Signal to Noise Ratio (SNR): ~ 250
Field Of View (FOV): Upwelling radiance ~ 25°. Downwelling radiance 180°
OPERATIONAL
Signal Optimization: Automatic adaption to varying light conditions
Dark current: Accurate dark current determination at each measurement cycle
Manual acquisition: Interface software for manual measurement and calibration
Automatic acquisition: Fully autonomous measurement mode for unattended data acquisition 20 seconds under bright sunshine 60 seconds in overcast conditions
Quick measurements: 10 seconds under bright sunshine 30 seconds in overcast conditions
Stability: Reference system stability check and uncertainty estimates
Simultaneous metadata: Temperature, GPS position, GPS time
Data storage: SD card up to 32 GB (12 months of measurements)
Case: Robust and Waterproof housing based on the 1200 Pelicase
Dimension: 300 × 250 × 130 mm
Power supply: 12 Volt. From battery and solar panels
Power consumption: 800 mAh
Energy saver: Day/night switch for energy saving
Interfaces: RS232 via cable and wireless
OPTIONAL
Dust Protection: Additional dust protection for Cosine Receptors
Fiber optics: Flexible length of fiber optics according to user needs
Power supply: Solar panel and battery
Field use: Backpack option including small battery packs