COMPACT IR-SPECTROMETER
Model S90-IR
FEATURES
The compact high-sensitivity spectrometer S90-IR contains a non-cooled linear InGaAs image sensor, and is recommended for any spectroscopic applications in the NIR spectrum range such as fluorescence, reflection, transmittance, photometric measurements and other researches that do not require long-time signal storage.
NON-COOLED INGAAS DETECTOR
COMPACT MONOLITHIC CASE ENSURES STABILITY OF PARAMETERS
DIFFRACTION GRATING, SPECTRAL RANGE AND RESOLUTION ARE CHOSEN AT THE TIME OF ORDER PLACING
USER-FRIENDLY INTERFACE COMPATIBLE WITH WINDOWS XP, WINDOWS 7/8/10
DESCRIPTION
The high-aperture optical scheme of the S90-IR has no moving parts. The S90-IR case is monolithic and ensures long-time stability of parameters.
The S90-IR spectrometer is easy and convenient to use: it is calibrated by the manufacturer, is controlled and powered from the PC via Full-Speed USB interface. Light input with the use of quartz optical fiber provides flexibility of instrumentation arrangement. The spectrometer has the entrance slit of fixed width and may be used without optical fiber.
Spectral curve of sensitivity of the InGaAs linear image sensor, G9204-512D model
Overall dimensions of the S90-IR spectrometer
SPECIFICATIONS
SPECTROMETER MODEL
S90-IR
Spectral range, nm
780 – 1700
Focal length, mm
87.7
F/number
1 : 7.7
Entrance slit, mm
0.020 × 3
Spectral resolution
depends on selected diffraction grating (see table below)
Detector model
G9204-512D
Number of pixels
512
Pixel size, μm
25 × 500
Active area size, mm
12.8 × 0.5
Maximum spectral sensitivity , nm
1550
Non-uniformity of sensitivity 1), 4)
± 5 %
Anti-blooming 2)
Yes
ADC Resolution
16bit, 125 kHz
Mean-square reading noise, ADC counts 4)
< 6
Dynamic range
~ 12000 : 1
Exposure time
8.2 ms – 0.7 s 3), 4)
Frame processing time, ms
4.1
Thermoelectric cooling
No
Operating temperature
10 – 30 °С
Computer interface
Full Speed USB
Triggering
internal / external
Requirements to external trigger pulse
BNC-58 connector, positive polarity, 3-15 VDC amplitude, 5-20 μs pulse duration FWHM
Parameters of the S90-IR trigger pulses
positive polarity, 4-5 VDC amplitude, 10 μs pulse duration FWHM
Optical input
— direct input through the S90-IR entrance slit
— Optical Fiber : 0.6 mm diameter, 1m length, SMA-905 connectorDimensions, mm
142 × 110 × 80
Weight, kg
1.2
1) Signal level — 50% of saturation. Exposure time is 10 ms.
2) Anti-blooming – sensor’s feature eliminating overflow of charges from over-exposed pixels to neighboring ones.
3) Maximum exposure time is deemed to be the time at which dark signal makes up 25% of the dynamic range at the ambient temperature +25°C.
4) The detector provides two operation modes: wide dynamic range or high sensitivity. Parameters indicated in the table are for the wide dynamic range mode.
Recommendations for choosing a diffraction grating
When placing an order, you should choose the number of grating lines (i.e. spectral resolution of your instrument), as well as the spectral range for operation. For your convenience the table below contains average values of grating dispersion, spectral resolution and simultaneous recording interval of the CCD-detector.
DIFFRACTION GRATINGS, LINES/MM
150
200
300
400
600
— spectral range of InGaAs detector sensitivity, nm
780 — 1700 nm
— multichannel array bandpass (average), nm
954
710
464
320
210
— reciprocal linear dispersion (average), nm/mm
74.5
55.5
36.3
26.5
16.6
— spectral resolution (average), nm
4.6
3.4
2.3
1.7
1.0
EXAMPLE: If you are interested in the grating 200 lines/mm (average spectral resolution 3.4nm), it remains to choose a location of simultaneous recording interval 710nm within the possible spectral range of 780-1700nm, for instance, the S90-IR spectrometer operating in the range 990-1700nm with 3.4nm resolution.
商品属性 [波长范围] 780 – 1700nm