The IL2000 SpectroCube™ Spectroradiometer (patent pending) is a fully
automated absolute spectroradiometer. Its unique double-pass monochromator design
gives it extraordinary accuracy and range without sacrificing portability or ease of use.
The IL2000 folds an optical path length of approximately three feet into a ten inch cube. Its compact size is complemented by internally balanced components for operation in any orientation. The housing is gas-tight, with O-ring seals and nitrogen purge ports to provide an optically pure environment.
The system can operate on either AC or DC battery power. For connection to a computer, the IL2000 features both a standard serial port and a built-in modem that will wake the system up from low-power "sleep" mode when it receives a call. The IL2000 is equally at home in a metrology lab or in the field - it will even work on top of a telephone pole!
Each time the IL2000 is turned on, it automatically recalibrates to an internal optical wavelength standard. This compensates for any mechanical change in the wavelength drive system caused by temperature or physical orientation. The IL2000 will even operate on any one of its six sides - even upside down! The ability to self-calibrate adds stability and reliability to the IL2000 platform.
SpectroCube™ analysis software provides an intuitive graphical user interface to the system. Based on the popular LabVIEW® virtual instrumentation platform, users can run the included executable program or customize the program using LabVIEW® software. [LabVIEW® is a trademark of National Instrument Corporation]
Users may also communicate with the IL2000 using Hyperterminal or any simple telecommunications program. The IL2000 recognizes over 40 commands, allowing the user to initialize system parameters, perform scans or control individual elements of the system from a handheld terminal or remote system.
Proprietary double-pass monochromator technology (patent pending) provides inherently better wavelength tracking than a double monochromator. The first-pass dispersion is optically chopped, then returned to the same grating for a second spectral dispersion. This chopped signal is then synchronously measured with a lock-in current amplifier, providing a million to one scatter figure from 250 to 1100 nm with 2 nm bandwidth and 0.2 nm resolution.
The NIST traceable calibration is stored directly in hardware, allowing the IL2000 to output absolute data without external software manipulation. Multiple calibration profiles are stored in memory for alternate system configurations.
The IL2000 can measure light levels ranging from moonlight to full sunlight, an eight decade dynamic range, by combining a high gain preamp, floating current-to-current amplifier, and synchronous detection technology. This wide dynamic range, combined with a very low scatter figure, allows the IL2000 to measure low level components of broad composite sources - like the amount of UVB in sunlight.
The detector and input optics are removable,
allowing easy reconfiguration of the system by adding
interchangeable components. A solar-blind high gain detector can
be used for specialized UV applications, or the detector
can be replaced with a lamp accessory to create a
monochromatic light source. Interchangeable input optics are
available for cosine spatial response, optical power and
radiance measurements. An external chopper sync output
allows the ability to pulse a distant light source, thus
creating a lock-in spectrophotometer that can measure
transmission through a nearly infinite sample path.
Optical Spectral Range 250-1100 nm Wavelength - Accuracy ±0.5 nm - Repeatability ±0.2 nm - Resolution 0.2 nm Bandwidth - Minimum 2 nm - Maximum 20 nm Grating - Dispersion 4 nm/mm - Slit width 0.5 mm - Focal Length 137 mm Order Sorting Filters - Ultraviolet 250-399 nm - Visible 400-619 nm - Near Infrared 620-1100 nm System Gain - Peak Responsivity 0.05 A*cm2*nm*W-1 - Noise Equiv. Irradiance 40 pW*cm-2*nm-1 - Max Irradiance (500nm) 40 mW*cm-2*nm-1 Scatter Figure 1.0 e-6 Aperture Ratio f/4 Chopper Frequency 2 Hz Scan Speed - Maximum 40 nm/sec - Minimum 0.2 nm/sec - Slew Rate 65 nm/sec Mechanical Weight 8.5 kg Dimensions - Height 210 mm - Depth 225 mm - Width 225 mm Electrical Voltage - AC 90-260 V - Line Frequency 47-63 Hz - DC 11-16 V Input Power - AC (Min / Avg / Max) 1.9 / 7.5 / 22 W - DC (Min / Avg / Max) 0.001 / 5.8 / 19 W Operating Temperature Range 0-40° C Communications RS232C Serial Port 9 Pin D-Sub Modem Port RJ-11 Baud Rate 600-9600 BPS
IL2000 SpectroCube™ Spectroradiometer
Double-pass monochromator with onboard computer, automatically controlled chopper and order sorting filters. The unit is controlled via modem or direct serial connection.
SHD033 High Gain Detector
Matches the sensitivity of a photomultiplier using solid state preamplification of a silicon photodiode. The SHD240 solar blind vacuum photodiode is also compatible with the IL2000 system.
W Diffuser
Cosine correction input optics for general irradiance measurements. Integrating sphere and radiance input optics will also be available.
Power I/O Module
Provides remote power connecctions to AC or DC sources, and input/output connections to a PC.
SpectroCube Software
Data acquisition and analysis software for the IL2000, allows the user to configure the spectroradiometer, perform scans, capture data, and display results.
International Light, Inc.
TEL: 978-465-5923
FAX: 978-462-0759
ilsales@intl-light.com