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JB Hyperspectral Devices - Model NIR Reflectance Box -Automatic Field Spectrometer for Visibility and Near-Infrared Measurements
The NIR Reflectance Box, also known as the NoX automatic field spectrometer, is a sophisticated instrument designed for continuous observation in the visible and near-infrared regions. It facilitates high-resolution spectral data collection with approximately 3 nm resolution while maintaining a robust construction suitable for permanent outdoor installations. Developed in collaboration with Jülich Research Center and the University of Milano Bicocca, the NoX stands as an advancement over previous systems like the MRI, SFLUOR box, and SIF-System. Key technical features include automatic signal optimization, dark current determination, and autonomous measurement capabilities, ensuring adaptability to varying light conditions. With a dual field of view, the NoX efficiently measures both upwelling and downwelling radiance. Its temperature-controlled housing enhances signal-to-noise ratio, and optional configurations accommodate user-specific spectrometer choices. Designed for durability, it operates in challenging environments with low power requirements.The NoX automatic Field spectrometer is a new JB product. It allows measuring from Visibile up to the Near Infrared region (1650 nm). Its low power consumption and rugged case makes it suitable for installation in harsh enviroments: from the poles to the equator. From vegetation to snow the NoX is suitable for researches where the NIR range makes the difference.
The NIR reflectance box (NoX) is an unique instrument, enabling the continuous observation of Up-welling and Down-welling radiance in the visible near infrared region. It measures spectral data of high resolution (approximately 3 nm), yet is built to withstand the hazards of a permanent outdoor installation.
It represents the evolution of prototypes such as the 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 FloX are based on SPECY (Forschungszentrum Jülich, IBG-2: Plant Sciences).
The NoX is specifically designed to measure Radiance and reflectance under natural light conditions. Therefore the design is optimized to achieve maximum efficiency in terms of: Signal to Noise Ratio, Spectral Resolution and quick acquisition time. Different combination of spectrometers can be selected by the users (e.g. SR4, FLAME, QEpro for the visible range. FLAME-NIR or NIRquest for the NIR range. All from Ocean Optics). Upward and downward channels of the NoX allow to measure the solar irradiance (making use of JB COS) and the reflected radiance from the canopy. In order to keep a stable level of dark current the spectrometers are embedded in a temperature controlled housing. The signal-to-noise is maximized thanks to accurate automatic optimization of the signal of both channels and a high performance optical light throughput.
OPTIC SPEC 1
Wavelength range: ~ 350-1100 nm
Spectral Sampling Interval (SSI): ~ 0.7 nm
Spectral resolution (FWHM): ~ 3 nm
Signal to Noise Ratio (SNR): ~ 1000
Field Of View (FOV):
OPTIC SPEC 2
Wavelength range: ~ 900-1650 nm
Spectral Sampling Interval (SSI): ~ 1.5 nm
Spectral resolution (FWHM): ~ 3 nm
Signal to Noise Ratio (SNR): ~ 300
Field Of View (FOV): Dual 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
Automatic Acquisition: Fully autonomous measurement mode for unattended data acquisition
Quick measurements: 20 seconds under bright sunshine 60 seconds in overcast condition
Stability: Reference system stability check and uncertainty estimates
Simultaneous metadata: Spectrometer temperature, Outside temperature, GPS position, GPS time
Data Display: Live assessment of the systems status
Data storage: SD card up to 32 GB (12 months of measurements)
Case: Robust and Waterproof housing based on the 1510 Pelicase
Dimension: Small form factor (50 × 30 × 20 cm)
Power supply: 12 Volt. From battery or solar panels
Power consumption: Average consumption of 60 Watt. (20/100 Watt, cooling on/o)
Energy saver: Day/night switch for energy saving
Interfaces: RS232 via cable and wireless - SDI-12
OPTIONAL
Dust Protection: Additional dust protection for Cosine Receptors
Fiber optics: Flexible length of fiber optics according to user needs
Communication: Addon for LAN/WLAN/Mobile Network Remote access