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Near Infrared (NIR) Spectrometer - NIRPro

NIRPro is a cooled near-infrared fiber optic spectrometer. It features high resolution, low stray light and configurable spectral range. You can choose a spectral range from 950-1700nm, 950-2200nm or ...
DETAIL

NIRPro is a cooled near-infrared fiber optic spectrometer based on symmetrical CT optical path design. It has a small structure design, high resolution, low stray light and configurable spectral range. You can choose a spectral range from 950-1700nm, 950-2200nm or 950-2500nm. Further, it equipped with TE-Cooled back-thinned InGaAs detector, so the cooling temperature can reach -25℃. With good spectral response stability and reproducibility, NIRPro is very suitable for laser measurement and near-infrared measurement.

 

  • Features

  • High resolution, the best up to 0.3nm;
  • Equipped with TE-Cooled back-thinned InGaAs detector;
  • With wide dynamic range, high signal-to-noise ratio and good stability;
  • Key-SMA905 design, suitable for kelp pin multi-core dense cluster fiber, fiber insertion strength consistency ≤7%;
  • High performance AD quantization sampling circuit, background noise ≤3RMS (10ms integration time);
  • Configure USB, serial communication interfaces, configure 24PIN interactive interface, configure proprietary DAC and ADC, can achieve supporting light source enable, intensity control and power feedback.

 

  • Specification

Product NIRPro series

A type

High sensitivity

B type

High resolution
Dimensions 128×106×54mm 189×115×54.5mm
Weight ≈0.85KG ≈1.25KG
 
Optical parameters
Optical fiber interface Key-SMA905
Slit 10μm、20μm、25μm、50μm、100μm、200μm
(customizable)
Detector InGaAs detector
Stray light ~5%
Consistency of optical fiber insertion and removal ≤7%
Function parameters
AD sampling 16bit
Data interface USB2.0、RS232
Extended function interface 24PIN
Acquisition mode Single, continuous, software trigger, synchronous external trigger, asynchronous reset external trigger
Detector integration time

100 µs-5 min (λ-1700nm)

100 µs-500 ms (λ-2200nm)

100 µs-500 ms (λ-2500nm)
CCD read noise1 ≤8
Spectral dynamic range2 7000:1
CCD dynamic range3

≥15000:1 (~1700nm full signal)

≥10000:1 (~2200nm full signal)

≥7500:1 (~2500nm full signal)
Signal-to-noise ratio4 2000:1
Signal to noise ratio (full signal)5 ≥13000:1
Response linearity6 ≥98%
Others
Operating temperature 0℃~40℃
Working humidity 20%-85%

1. CCD dark noise: integration time 10ms, CCD readout noise root mean square;

2. Spectral dynamic range: CCD dynamic range is 2ms integration time saturation value /CCD readout noise root mean square, the evaluation method refers to the enterprise standard;

3. CCD dynamic range: The dynamic range of the CCD detector in the case of full signal;

4. Signal-to-noise ratio: the actual observed value according to the standard evaluation method of enterprise;

5. Signal-to-noise ratio (full signal): Theoretical value referring to CCD manufacturers and peer evaluation methods;

6. Response linearity: before calibration.
 
 
 

  • Products

    A type - High sensitivity
    Model Number of pixels

    Cooling

    temperature    		 Spectral Range Spectral resolution
    Pixels
    °C
    		 Start End
    10um
    25um
    50um
    100um
    		 200um
    NIRPRO-950-2500 512
    -25
    		 950 2500 -
    8.00
    		 12 15 20
    NIRPRO-1000-2200 512
    -25
    		 1000 2200 -
    8.00
    		 - -
    		-
    NIRPRO-950-1700 512
    -25
    		 950 1700 3.00
    4.00
    -
    		 - -

    B type - High resolution
    Model Number of pixels

    Cooling

    temperature    		 Spectral Range Spectral resolution
    Pixels
    °C
    		 Start End
    10um
    25um
    50um
    100um
    		 200um
    NIRPRO-900-1400 512
    -25
    		 900 1400 -
    1.8
    		 -
    -
    		 -
    NIRPRO-1250-1600 512
    -25
    		 1250 1600 -
    		1.2 -
    -
    		 -
    NIRPRO-1240-1380 512
    -25
    		 1240 1380 0.4
    		0.6 -
    -
    		 -
    NIRPRO-1450-1590 512 -25 1450 1590 0.4 0.6 -
    -
    		 -
 
 

  • Dimensional drawing

A type - High sensitivity



B type - High resolution

 

  • Testing results

Dark spectrum (900-1700 nm)



Argon light spectrum (900-1700 nm)



Tungsten light spectrum (900-1700 nm)



Solar radiation spectrum (900-1700 nm)



Typical dark spectrum at 10ms integral time (900-2500 nm)




Typical dark noise at 10ms integration time VS integrated time dark spectrum




10ms integrated time signal to noise ratio (active)




Dynamic range




Xenon lamp spectrum (900-2500 nm)



Tungsten light spectrum (900-2500 nm)


 

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