Sol 2.2A
TE Cooled InGaAs Array Spectrometer (2.2 µm)
The Sol™ 2.2A NIR spectrometer is a high performance linear InGaAs array spectrometer with an available spectral range of 900-2200nm. Its 256 pixel detector provides high throughput and large dynamic range with TE Cooling down to -15oC via a built-in 3-stage cooler. The built-in autozero function automatically reduces dark current and dark non-uniformity, resulting in an increased signal-to-noise ratio. Software control allows you to choose from four types of operation modes; Maximum Dynamic, High Dynamic, High Sensitivity, and Maximum Sensitivity in order to optimize your spectrometer for your specific application.
The Sol 2.2A NIR spectrometer features a SMA 905 fiber optic input, built-in 16-bit digitizer, and is USB 2.0 plug-and-play compatible. This spectrometer is ideal for demanding applications in process monitoring, quality control, and materials identification. Customized spectral resolution and application support are also available for OEM customers.
Applications:
Process Monitoring
NIR Spectroscopy
Quality Control
On-line Analyzer
Material Identification
Features
900nm - 2200nm spectral range
Resolution as fine as 9.0Nm
-15oC Thermoelectric Cooling
Built-in autozero (noise level reduction)
Four sensitivity & dynamic range modes for specific application needs
DC Power Input
5V DC @ 5 Amps
AC Adapter Input
100 - 240VAC 50/60 Hz, 1.0A @ 120VAC
Detector Type
Linear InGaAs Array
Pixels
256 x 1 @ 50μm x 250μm Per Element
Spectrograph f/#
3.5
Spectrograph Optical Layout
Crossed Czerny-Turner
Dynamic Range
Maximum Dynamic Mode: 25,000:1
High Dynamic Mode: 12,500:1
High Sensitivity Mode: 12,500:1
Maximum Sensitivity Mode: 1,700:1Digitizer Resolution
16-bit or 65,535:1
Readout Speed
500 kHz
Data Transfer Speed
>300 Spectra Per Second Via USB 2.0
Integration Time
250μs to >= 64 Seconds
External Trigger
Aux Port
Operating Temperature
0°C - 35°C
TE Cooling
Three-Stage: -15°C @ Relative Humidity = 90%
Weight
~ 3.1 lbs (1.4 kg)
Dimensions
7.5in x 4.3in x 2.7in (192mm x 109mm x 68mm)
Computer Interface
USB 2.0 / 1.1
Operating Systems
Windows: 7, 8, 8.1 (32-bit & 64-bit)
1. Fiber Coupler
Secures Fiber to Ensure Repeatable Results
By coupling a fiber optic to the SMA 905 adaptor, light will be guided to the slit and optically matched, ensuring reproducibility. For free space sampling, a diffuser or lens assembly can be connected directly to the SMA 905 adaptor.2. Entrance Slit
Determines Photon Flux and Spectral Resolution
Light entering into a spectrometer’s optical bench is vignetted by a pre-mounted and aligned slit. This ultimately determines the spectral resolution and throughput of the spectrometer after grating selection. We offer a variety of slit widths to match your specific application needs: from 50μm - 100μm wide, with custom slits available.
Slit Option
Dimensions
Approx. Resolution
1100 - 2200nm50μm
50μm wide x 1mm high
~9.0nm
100μm
100μm wide x 1mm high
~18.0nm
Custom Slit Widths Available
3. Collimating Mirror
Collimates and Redirects Light Towards Grating
Both mirrors are f/# matched focusing mirrors coated with a special coating, which enhances the NIR signal.4. Diffraction Grating
Diffracts Light, Separating Spectral Components
The groove frequency of the grating determines two key aspects of the spectrometer’s performance: the wavelength coverage and the spectral resolution. When the groove frequency is increased, the instrument will achieve higher resolution, but the wavelength coverage will decrease. Inversely, decreasing the groove frequency increases wavelength coverage at the cost of spectral resolution.The blaze angle or blaze wavelength of the grating is also a key parameter in optimizing the spectrometer’s performance. The blaze angle determines the maximum efficiency that the grating will have in a specific wavelength region.
Spectral
Coverage (nm)Grating
Approximate Resolution
50μm Slit1100-2200
100/1600
9.0nm
900-2200
85/1350
15.0nm
Custom Configurations Available
5. Focusing Mirror
Refocuses Dispersed Light onto Detector
Both mirrors are f/# matched focusing mirrors coated with a special coating, which enhances the NIR signal.6. Array Detector
Measures Entire Spectrum Simultaneously
The Sol™ 2.2A features a 256 x 1 TE Cooled linear InGaAs photo diode array detector with pixel dimensions of 50μm x 250μm and 256 active pixels. Using BWSpec™, the detector mode can be switched between two sensitivity and two dynamic modes, allowing for greater control over the detector’s sensitivity.
Specifications
Wavelength Range
1100nm - 2200nm
Pixels
256
Pixel Size
50μm x 250μm
Well Depth
Maximum Dynamic Mode: ~250 Me-
High Dynamic Mode: ~125 Me-
High Sensitivity Mode: ~12.5 Me-
Maximum Sensitivity Mode: 1.25 Me-Digitization Rate
500 kHz
7. Thermoelectric Cooler
Reduces Dark Noise and Improves Detection Limits
Cooling an array detector with a built-in thermoelectric cooler (TEC) is an effective way to reduce dark current and noise, as well as to enhance the dynamic range and detection limit.When the InGaAs array detector is cooled from a room temperature of 25°C down to -15°C by the TEC, the dark current is reduced by ~32 times and the dark noise is reduced by ~5.7 times. This allows the spectrometer to operate at longer exposure times and to detect weaker optical signals.
商品属性 [波长范围] 900nm - 2200nm