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RED-Wave-NIRX-SR EXtended Range NIR Spectrometers

 

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EXtended Range NIR Spectrometer


  • Measurements from 900-2300nm (0.90-2.30 um)
  • For NIR measurements and applications requiring wide spectral range
  • 512 or 1024 pixel extended range InGaAs Photo Diode Array
  • Integrated 2-stage thermo electric cooler set to operate at -30 deg C
  • Design enhancements increase air flow and utilize a specialized heat sink for added stability

Range 900-2300nm
StellarNet’s high performance InGaAs extended range spectrometers cover the NIR wavelength range from 0.9-2.3μm in one unit. The spectrometers are exceptionally robust with no moving parts and are packaged in small rugged metal enclosure (2.75” x 4” x 6”) for portable, processes, and lab applications. The InGaAs detector is a Sensors Unlimited linear photo diode array with 512 pixels (1024 optional) 25μm by 250μm tall to provide best signal performance. The detector has an integrated two-stage thermo electric cooler (TEC) maintained at –20 °C, stabilized within +/-0.1°C. The RED-Wave-NIRX-SR-InGaAs spectrometers use single strand SMA 905 fiber optic input.

NIR applications include chemical ID and moisture analysis, SpectroRadiometry and optical power measurements, laser characterization, microsensor applications, and thicker thin-film measurements.

InGaAs Model Number of Elements Spectrometer   Range (nm) Grating      (g/mm) Grating Range (nm) Dispersion (nm/pixel) Estimated Resolving Resolution
NIRX-SR 512 900-2300 300 1400nm 5.3 <13nm
NIRX-SR 1024 900-2300 600 1400nm 2.7 <7nm
Specifications           Zero defect 512 detector RED-Wave-NIRX-SR Spectrometer      $18,995
Dynamic range:                     4000:1 with 6 decades Dimensions:                             150 x 100 x 68.8 mm
Resolving resolution:            13nm with 25μm slit Power consumption:               2 Amps @ 5 VDC
InGaAs Detector:             512 or 1024 pixel cooled PDA Interface:                                  USB-2 and Parallel
Detector range:                    0.9-2.3μm   (900-2300nm) Data transfer speed:               40x faster than USB-1
Pixel size:                              25um x 250um Detector Integration:               1 millisecond to 200ms
Pixel well depth:                  130 x108 electrons Slit size options:                       25um for optimum performance
Selectable well control:      130 x108  or  5 x106 el. Operating systems:                 Win XP, Vista, 7, 8, & 10
Signal to noise:                  12000:1 with 2x TEC cooling Software included:                  SpectraWiz program & apps
Digitizer:                                16-bit Also free programs for:          LabView,Excel+VBA,Delphi

RED-Wave-NIRX-SR Sample Spectra



RED-Wave-NIRX-SR InGaAs 512 pixels spectrum showing spectral characteristics of Tylenol, Excedrin PM, and Ibuprofen tablets. Often NIR spectroscopy is used as a non-contact method to distinguish between coatings.

RED-Wave-NIRX-SR spectrometer with SL1-CUV tungsten halogen lamp with integrated cuvette holder, and a F1000-VIS-NIR 1000um diameter fiber optic cable measuring the NIR absorption of methanol in water.

RED-Wave-NIRX-SR spectrometer with RFX1 reflectance fixture plotting NIR 2nd derivative spectra of soy products with varying fat content.

Lens, filters, films, coatings, and plastics sometimes will have interesting characteristic fringe patterns in the far NIR. Be sure to test your samples!

RED-Wave-NIRX-SR spectrometer with SL1 tungsten halogen lamp, TXF-4 transmission fixture, and two F600-VIS-NIR 600um diameter fiber optic cables measuring the transmission through PTFE and Lexan plastics. Above SpectraWiz spectroscopy software displays 2nd derivative spectra in real time.

RED-Wave-NIRX-SR spectrometer with SL1-CUV tungsten halogen lamp with integrated cuvette holder, and a F600-VIS-NIR 600um diameter fiber optic cable measuring the NIR absorption of oil and alcohol solutions.

Fats and oils constitute the main source of energy and essential fatty acids in the human diet. Additionally, fats and oils function as lubricants in equipment and carriers of fat-soluble vitamins and pigments. Exploring the NIR past 1700nm allows us to identify some of the more important spectral feastures of fats and oils. Above is a spectrum of the StellarNet low dark Noise NIRX (900-2300nm) showing important spectral features past 1700nm such as Fatty Acids absorbance bands at 1750nm and oil saturation absorbance at 2100nm.

Coffee in addition to many other agricultural products shows very important spectral characteristics past 1700nm. Commercial coffee is mainly made up of two main blends, Arabica and Robusta. Main distinguishing absorptions can be found from water content (1466nm and 1962nm) and lipids. NIR spectroscopy can be used for classification as well as blending. Also, caffeine and dry matter content can be determined. For food quality control and identification of adulterants it is very important to test all parts of the NIR region.

Free SpectraWiz Softwaresoftware

The powerful SpectraWiz® spectrometer software is provided free of charge with every spectrometer instrument. This includes drivers and customizable software for Windows. The SpectraWiz software is considered the “Swiss Army Knife of Spectroscopy” and may be used to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities. In addition to real-time spectroscopy, SpectraWiz® has built-in applications for SpectroRadiometry, SpectroColorimetry, ChemWiz chemistry lab concentration analyzer, and UV level monitors.

Download SpectraWiz Software FREE


 

Dual System Configurations
All NIRX-SR units can be coupled with StellarNet’s BLACK-Comet or UVN-SR units to cover the entire 200-2300nm range. Coupling the units can provide you with quick analysis of color in the visible spectrum and additionally compound analysis though compound fingerprint identification in the near infrared spectrum.

JACK 1-IN Trigger
Add an external TTL trigger input to enable spectrometer scan

Multi-Spectrometer Configurations
Units may be daisy chained via USB-2 hub allowing simple configurations for dual and multi-beam process applications. 8 spectrometers can be operated at once!

Dual System Configurations
All NIRX-SR units can be coupled with StellarNet’s BLACK-Comet or UVN-SR units to cover the entire 200-2300nm range. Coupling the units can provide you with quick analysis of color in the visible spectrum and additionally compound analysis though compound fingerprint identification in the near infrared spectrum.

Interfaceusb 2.0
The system includes a high speed plug & play interface using USB-2 connection.

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