DWARF-STAR Model 선택

DWARF-Star Miniature NIR Spectrometer

NIR Spectrometer Features

  • NIR Measurements in the 900-1700nm range

  • Spectral resolution down to 1nm for certain models

  • Miniature size 5x3x2″ with rugged, compact design

  • Integrated thermo electric cooler set to operate at -15 deg C

  • Complete Software Development and Integrated Chemometrics options

  • 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.

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