NIR Spectrometer Features
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NIR Measurements in the 900-1700nm range
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Spectral resolution down to 1nm for certain models
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Miniature size 5x3x2″ with rugged, compact design
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Integrated thermo electric cooler set to operate at -15 deg C
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Complete Software Development and Integrated Chemometrics options
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For NIR portable and OEM applications
Standard Models
Number of Element
512
512
512
512
1024
Wavelength Range (nm)
900-1700
1000-1700
1250-1575
1150-1475
1000-1700
Grating
g / mm
250
300
600
600
600
DWARF-STAR
NIR
NIRb
NIR2
NIR2b
NIR
Grating Range(nm)
800
650
325
325
700
Dispersion
(nm/pixel)
1.25
1.00
0.50
0.50
0.62
Estimated Resolving Resolution
2.50nm
2.00nm
1.00nm
1.00nm
1.25nm
Specifications
Dimensions:
Power Consumption:
Interface:
Data Transfer Speed:
Detector Integration:
Slit Size Options:
Fiber Optic Input:
Operating Systems:
Software Included:
Also Free Programs For:
5" x 3" x 2"
1.5 Amps @ 5 VDC
USB-2
40x faster than USB-1
1 millisecond to 60s
25um
SMA905 0.22 na single fiber
Win XP, Vista, 7, 8, & 10
SpectraWiz program & apps
LabView,Excel+VBA,Delphi
Dynamic Range:
Resolving resolution:
InGaAs Detector:
Detector Range:
Pixel Size:
Pixel well depth:
Selectable well control:
Signal to Noise:
Digitizer:
4000:1 with 5 decades
2.5nm with 25μm slit
512 or 1024 pixel
900-1700nm
25um x 500um
130 x10^8 electrons
130 x10^8 or 5 x10^6 el.
4000:1 with TEC cooling
16-bit
Lens, filters, films, coatings, and plastics sometimes will have interesting characteristic fringe patterns in the far NIR. Be sure to test your samples!
Range 900-1700nm
DWARF-Star in handStellarNet’s most popular NIR spectrometer, the DWARF-Star, is small, robust, and equipped with high performance InGaAs detector array for the 900-1700nm wavelength range and achieves resolving resolutions to 1.25nm. The DWARF-Star features no moving parts and is packaged in a small rugged metal enclosure (5”x3”x2”) for portable, process, and OEM applications. Advancements in electronic and optical design have allowed for size reduction never before achieved in a NIR spectrometer. The InGaAs detector is a Sensors Unlimited linear photo diode array with 512 pixels (1024 optional) 25μm by 500μm tall to provide maximum sensitivity. The detector has an integrated thermo electric cooler (TEC) maintained at –10 °C, stabilized within +/-0.1 °C. The NIR spectrometers accept a single strand SMA-905 terminated, low OH, fiber optic cable as input. Several models provide a variety of operational ranges and resolutions suitable for both spectroscopy and optical spectrum analysis.
StellarNet also offers light sources, probes, and sampling accessories to facilitate virtually any NIR application. The miniature DWARF-Star NIR spectrometer is ideal for process analytical technology for industries such as food and drug, chemical, oil and gas, and plastics. The DWARF-Star’s miniature size, low cost, and rugged design also make it ideal for the field, enabling on-site product analysis and quality control never before attainable.