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NOX

NIR reflectance BoX

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.

Flyer

DESCRIPTION

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.

Specifications

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)

Dual FOV. Upwelling radiance 25°. Downwelling radiance 180°

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

FAQ

How do I process the NoX data?

NoX is saving raw data. To convert it into radiance and compute reflectance and a variety of vegetation indices, an open source R package is available. A graphical user interface makes the data processing easy for any customer to allow processing of years of data with a few clicks.

How can the NoX be integrated for remote access and live datastream

The basic NoX is equipped with an USB interface to stream data directly to a connected computer. The NoX is also able to pass a sub selection of variables (VIs and vital data) via SDI-12. The optional embedded PC, if connected to internet (LAN, WLAN, mobile network) allow daily data stream of the full data set.

What is the delivery time of the instrument?

Delivery time ranges from one to a maximum of three month

Can JB provide assistance for instrument installation?

Yes. Just get in touch with us to request our installation service.

Contact us for more info about our products

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