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RED-Wave-NIRX-SR InGaAs Miniature NIR Spectrometer
공급처 : StellarNet, Inc.
Country : USA

RED-Wave-NIRX-SR Models
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.

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.

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.



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 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.

Superior InGaAs Array Technology
Now for a limited time StellarNet is offering a variety of extremely low noise, high sensitivity NIR spectrometers. Perform spectral reflectance, radiometry, and more. ContactUs@StellarNet.us for availability.

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.


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




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

Optional Configurations
Several units may be daisy chained via a parallel cable or USB-2 hub allowing simple configurations for dual and multi-beam process applications.

Free SpectraWiz Software
The powerful SpectraWiz® 32 bit spectrometer software is provided free of charge with every spectrometer instrument. This includes drivers and customizable software for operation on Win95 / Win98 / WinNT / WinME / Win2000 /WinXP. 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.

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

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

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.


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.

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.



Dynamic Range:

4000:1 with 5 decades


150 x 100 x 68.8 mm

Optical Resolution:

13nm with 25μm slit

Power Consumption:

2 Amps @ 5 VDC

Pixel Size:

25um x 250um


USB-2 and Parallel

Detector Range:

0.9-2.3μm (900-2300nm)

Data Transfer Speed:

40x faster than USB-1

nGaAs Detector: 512 pixel cooled PDA array 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: Windows XP/Vista/7
Signal to noise: 400:1 with 2x TEC cooling Software included: SpectraWiz program & apps
Digitizer: 16-bit Also free programs for: LabView,Excel+VBA,Delphi


InGaAs Model

Number of Elements

Spectrometer Range (nm)

Grating (g/mm)

Grating Range (nm).

Dispersion (nm/pixel)

Estimated Resolving Resolution
















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