Telops
versatile spectro-radiometer (vsr)

Versatile Spectroradiometer

VSR

The Versatile Spectroradiometer (VSR) is a compact high sensitivity spectroradiometer which uses Fourier Transform Infrared (FT-IR) technology. Its high speed, robust operation is ideal for multi-scenario operation, from the laboratory to airborne applications even those with heavy vibrational constraints. The VSR can provide real-time high resolution spectral information on slow and fast occurring phenomenon, as well as perform material and target signature analysis.

Read more
High spectral resolution
High temporal resolution
Ultra-wide bandwidth: with its unique 3 detectors configuration, the VSR can cover the MWIR, LWIR and SWIR range (0.8 - 15 µm).

Versatile Spectroradiometer

Contact sales or request a quote

Contact us

Description

The Versatile Spectroradiometer (VSR) is a compact high sensitivity spectroradiometer which uses Fourier Transform Infrared (FT-IR) technology. Its high speed, yet robust operation allows its usage in different scenarios, from laboratory usage to airborne and heavy vibrations environments. The VSR can provide real-time high resolution spectral information on slow and fast occurring phenomenon, as well as perform material and target signature analysis.

The Ministry of Environment of South Korea utilizes VSR spectroradiometers to monitor smokestack emissions as part of a national initiative to standardize and measure fugitive emissions at major industrial sites. This technology enables the quantification of the three primary greenhouse gases; CO₂, CH₄, and N₂O enhancing environmental monitoring and regulatory efforts.

Technical Information

SPECIFICATIONSVSR SERIES
Detector TypeHgCdTe (MCT), InSb, InGaAS detector
Detector FormatSingle-Pixel
Spectral Range0.8 - 15 µm
Field of view (FOV)90 mrad Telescope 0.5x magnification
45 mrad Instrument FOV without telescope
22 mrad Telescope 2x magnification
6.4 mrad Telescope 7x magnification
 
Max. Frame Rate1 to 110 spectra/s
Typical NESR (At 16 cm-1 spectral resolution and 1s observation time)2.5 @ 1300 cm-1 nW/sr/cm2/cm-1
0.25 @ 2000 cm-1 nW/sr/cm2/cm-1
0.03 @ 6300 cm-1 nW/sr/cm2/cm-1
 
Dimensions46 x 65 x 32 cm (L x W x H)
Weight< 28 kg (Without telescope)
Power consumption< 192 W (115 or 230 VAC)
Operational Temperature-20 oC to +40 oC (Power consumption is increased when T < 20°C)

Standard:

  • Sealed interferometer module
  • Cryogen-free second input port cold source (see Figure 2, page 5)
  • Mid-wave IR (InSb) and long-wave IR (HgCdTe (MCT)) detectors
  • Interchangeable FOV using 3 different telescope options
  • Real-time radiometric calibration
  • Remote connection using TCPIP
  • Transport cases

Licence Included:

  • EDGARTM control, data acquisition and data processing software

Optional:

  • Short-wave IR (InGaAs) detector
  • Boresight video camera
  • Radiometric calibration external sources
  • Ruggedized field computer
  • Tripod

Benefits & Features

Benefits

  • High sensitivity: More photon are captured by the VSR spectroradiometer compared to filter-based or dispersive instruments
  • High-speed, robust operations: The VSR sweeping mechanism operates in any direction and in presence of vibrations. Multiple software-selectable speeds are available.
  • Ultra-wide bandwidth: Output 1 features MWIR + LWIR channels using a combined InSb (1.7µm to 5µm) and MCT (5µm to 20µm)detector sandwich. Output 2 features an optional InGaAs detector for operation in the 0.9µm to 1.7µm SWIR range.
  • High-efficiency beamsplitter/combiner: Non-hygroscopic and optimized for the 1 to 20µm spectral range
  • High spectral resolution: The VSR instrument achieve very high resolution in a compact instrument while preserving sensitivity.
  • Flexible spectral resolution: Change the spectral resolution by software to meet your experiment requirements.
  • LN2-free operation: A high-emissivity thermo electric cooler-controlled reference is provided in input port 2, offering rock-solid stability without the need for cryogens.
  • Robust telescope options: The VSR™ field-of-view can be adjusted by an easy switch of telescopes. No alignment is required, thanks to collimated beam interfaces.
  • Unmatched usability and field support: The VSR™ provides extensive housekeeping data recording (temperatures and voltages) as well as built-in remote access via TCPIP. Just plug the VSR™ to the Internet and a LR Tech expert can perform health monitoring and obtain an accurate diagnostic in minutes.
  • User-friendly software: The EDGAR™ software provides radiance, irradiance or brightness temperature feedback in real-time to simplify data validation in the field. This fully scriptable software allows automating tasks and increase of productivity. Basic scripts are provided. EDGAR™ supports a variety of industry-standard formats, including Matlab™, NETCDF, 16-bit and 32-bit binary formats.

Features

  • Measures temperature, water vapor, O3 CO, CO2, CH4 and NOx vs altitude (Atmospheric profiles)
  • Generate temperature and moisture profile every 2 minutes (near real time)
  • High accuracy measurements for weather applications
  • High vertical resolution and high temporal resolution
  • Integrated and automatic radiometric calibration
  • Extensive instrument health monitoring
  • Network-centered architecture
  • Extensive remote monitoring for maintenance
  • Accepts additional user devices via the built-in USB, LVDS, and CameraLink interfaces
  • Rugged construction (field deployable)

Documentation

Brochure/Leaflet

pdf download