NIR Spectrometer
Cooled NIR Spectrometer
The Cooled NIR Spectrometer operates in the near‑infrared range with a maximum spectral coverage of 900–2500 nm, which can be customized as needed. It features a 512‑pixel thermoelectrically cooled (TEC) InGaAs linear array detector, maintaining the CCD at a user‑defined constant temperature down to −30 °C. This cooling system significantly reduces sensor noise and achieves a signal‑to‑noise ratio (SNR) twice as high as competing products, ensuring measurement reliability unaffected by ambient temperature fluctuations.
The spectrometer integrates an ultra‑low‑noise CCD signal correlated double sampling (CDS) circuit with less than five counts of quantization noise—an industry‑leading specification. It supports SMA905 fiber or free‑space optical input, outputs spectral data via USB 2.0/UART, and operates on a single +5 V DC supply for seamless integration.
SPECIFICATION
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Detector |
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Detector type |
Cooled InGaAs Array CCD，Cooled down to-20ºC |
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Spectral range |
900-1700nm, 900-2100nm, 900-2600 nm, 900-1700HR, 900-2100HR, 900-2500HR (Customized) |
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Effective pixels |
512 |
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Pixels dimension |
50/25μm×250μm |
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Full well capacity |
187.5 Me- |
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Detector model |
G11477 |
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Sensitivity |
0.95 A/ W |
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Dark noise |
180 μV rms |
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Optical parameter |
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Focal distance |
100 mm for incidence / 110 mm for output |
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Optical resolution |
3-6nm （Custom configured grating grooves and slit size） |
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Incident Interface |
SMA905 connector，free space |
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Signal-to-noise |
>3000:1 |
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Dynamic range |
16666 |
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Working temperature |
-10 to +50℃ |
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Numerical aperture |
0.11 |
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Working humidity |
< 90%NC |
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Trigger |
YES(IN and OUT) |
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Cooling temperature |
-20°c |
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Scanning rate |
<200fps |
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Wavelength range |
900-1700nm, 900-2100nm, 900-2600 nm, 900-1700HR, 900-2100HR, 900-2500HR (Customized) |
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Physical parameters |
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Dimensions |
170×130×52.3 mm3 |
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Weight |
1.79kg |
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Sealing |
Anit-sweat |
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Optical configuration |
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Optical design |
f/4 crossed asymmetrical Czerny-Turner |
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Incident slit |
50 μm (5, 10, 25, 50, 100, or 200 μm optional) |
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Electrical parameter |
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A/D conversion resolution |
18 bit |
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Integration time |
1 ms -50ms, 900-2500nmHR 1ms-40s, 900-1700nm |
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Interface |
USB 2.0 |
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Supply voltage |
DC4.5 to 5.5 V (type @5V) |
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Operating current |
<3A |
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Storage temperature |
-20°C to +70°C |
Applications of NIR SPECTROMETER