The AvaSpec-NIR256-1.7 Fiber Optic Spectrometer is based on the AvaBench-50 symmetrical Czerny-Turner design with 256 pixel InGaAs Detector Array. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collimating and focusing mirror and diffractional grating.
A choice of 4 gratings with different dispersion and blaze angles enable applications in the 900-1700nm range. The AvaSpec-NIR256 includes a 16 bit AD converter, and USB2.0 high speed interface. The AvaSpec- NIR256-1.7 is especially suitable for measuring in the NIR range from 900-1750nm applications, e.g. plastics and water absorbance. Digital IO ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.
The AvaSpec-NIR256 series have a USB2 interface with fast datasampling of 940 spectra per second and datatransfer in 1.56 ms and supports analog in- and outputs as well. Optional BluetoothÒ (-BT) communication and an SD card for on-board saving of spectra can be added. The AvaSpec-NIR-256-1.7 runs on USB power. The spectrometer comes with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectrometers with different detector types can be externally coupled (see section multi-channel spectrometers).
Technical Data
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Optical Bench
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Symmetrical Czerny-Turner, 50 mm focal length
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Wavelength range
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900 - 1750nm
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Resolution
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2.0-50 nm
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Stray light
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< 0.1%
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Sensitivity (AvaLight-HAL, 8 µm fiber) in counts (16-bit A/D)/µW per ms integration time
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350
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Detector
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InGaAs linear array, 256 pixels
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Signal/Noise
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2000:1
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AD converter
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16 bit, 500kHz
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Integration time
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0.52 ms - 8 seconds
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Interface
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USB 2.0 high speed, 480 Mbps
RS-232, 115.200 bps
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Sample speed with on-board averaging
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1.06 ms /scan
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Data transfer speed
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1.56 ms /scan (USB2)
60 ms /scan (RS-232)
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Digital IO
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HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 12 Digital out, trigger, synchronization
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Power supply
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Default USB power, 350 mA or with SPU2 external 12VDC, 350 mA
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Dimensions, weight
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175 x 165 x 85 mm, 2.2 Kg
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Grating selection table for AvaSpec-NIR256-1.7
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Use
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Useable range
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Spectral range (nm)
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Lines/mm
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Blaze (nm)
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Order code
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NIR
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900-1750
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750
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200
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1500
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NIR200-1.5
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NIR
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1000-1700
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340
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400
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1600
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NIR400-1.6
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NIR
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900-1400
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200
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600
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1200
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NIR600-1.2
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NIR
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1300-1600
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170
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600
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1600
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NIR600-1.6
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Resolution table (FWHM) for AvaSpec-NIR256-1.7
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Slit size (µm)
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Grating (lines/mm)
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50
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100
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200
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500
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200
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6
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12
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24
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50
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400
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3
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6
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12
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25
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600
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2
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4
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8
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18
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Ordering Information
| AvaSpec-NIR256-1.7 |
Fiber Optic Spectrometer, 50 mm Avabench, 256 pixel InGaAs detector, USB powered high speed USB2 interface, incl. AvaSoft-Basic, USB interface cable, OSF-1000-3, specify grating, wavelength range and slit |
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| Options |
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| BT |
Bluetooth® interface for USB2 platform only, including antenna |
| SDXXX |
Internal XXX MB SD card for on-board data saving, for USB2 platform only |
| SLIT-XX |
Slit size, please specify XX = 50, 100, 200, 500 µm |
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