The Hyperspectral MR Series FTIR Spectroradiometers for Military Infrared Signature Target Characterization

The hyperspectral MR Series are the leading field infrared spectroradiometers both in terms of reliability and performance, with undisputed market dominance since its introduction in 1989. More than 150 systems have been installed all over the world.

The MR Series of spectroradiometers have earned a positive reputation based on outstanding high spectral resolution and radiometric reproducibility, sensitivity, and wavelength accuracy. These spectroradiometers are made up of FTIR Michelson interferometer configured with dual output ports simultaneously used to cover the LWIR and the MWIR + SWIR spectral range.

The MR series became the preferred FTIR spectroradiometers due to the combination of the performance superiority of the FTIR technology with the high radiometric accuracy. Some clients explain that they chose the ABB MR Series because it is the instrument of choice capable of providing spectral measurements precision within their expectations.

Specifically, the high resolution provides narrow spectral structure in the infrared radiation domain highly critical to military characterization demands. A number of defense research organizations around the world (in operation in more than 20 countries) have adopted the MR spectroradiometers series.

Superior Design

Equipment reliability and confidence in instrument performance is needed for efficient and smooth field trials or measurement campaigns. The MR series spectroradiometers are different from other commercial FTIR spectroradiometers due to durability and robustness.

Frictionless flex-pivots and corner-cube-retroreflectors are used by the rotary scanning mechanism. The interferometer design has been proven with over 3600 units produced and more than 400 billion of scan cycles successfully achieved.

Both outstanding stability of radiometric response and high reliability are provided by the permanently aligned interferometer (patented rotary scanning mechanism). The MR interferometer is capable of being operated in any orientation (useful for airborne operation) as it is balanced with respect to its center of rotation.


The MR Series of spectroradiometers have gained an outstanding reputation based on exceptional performance, with the following system advantages:

  • Portable and compact for easy deployment in airborne operation and field operation
  • Rapid scanning, allowing measurement of the evolution of rapidly varying target signatures
  • High radiometric accuracy and stability of response over a wide dynamic range
  • Wide spectral range (1 – 15 µm), covering LWIR to NIR
  • High NESR sensitivity, allowing characterizing weak signal in short time periods
  • High spectral resolution, (1 cm-1) equivalent to a filter radiometer with over 9000 channels
  • Extended FOV homogeneity, resulting in improved accuracy no matter where the target is in the FOV
  • Dual output and input ports allow simultaneous acquisition from two detectors
  • Wide choice of boresighting devices, telescopes and accessories
  • Available with liquid nitrogen cooled detectors (MR304LN, MR170) or with internal Stirling cooled detectors (MR304SC)


The MR Series ruggedized instruments are the ideal solution for:

  • Fugitive gas detection and identification
  • Chemical agents signature measurement
  • Industrial emission monitoring
  • Military IR target characterization
  • Atmospheric composition analysis and meteorological sounding

Defense and Security Tool of Choice

MR Series Spectroradiometers have been specifically developed for the following applications:

  • Countermeasure IRCM/IRCCM
  • Spectral characterization of camouflage systems and thermal signature optimization
  • Development, analysis and improvement of IR decoy emission spectra and enhanced heat seekers counter-measure systems
  • Remote sensing of battlefield conditions for developing a wide range of deployable reconnaissance solutions
  • Classifying fugitive emissions for developing infrared signature databases
  • Characterization of thermal emission signatures of targets such as: ships, ground vehicles, drones, helicopters, rockets, missiles, airplanes etc.
  • Classifying battlespace detonations, including missile launches, muzzle flash, and bomb-hit detonation

Capturing Fast Moving Targets

Targets that are rapidly evolving are moving in space and/or feature unstable radiated intensity. They are frequently a combination of unstable position in space and unstable radiated energy, which make it difficult to capture the emitted energy with good radiometric accuracy.

Considering a flare, a missile, a rocket, a plane or explosions as examples, the targets are moving in position within the instrument FOV and its spatial size and radiant intensity change over time. Explosions remain at the same location but the radiated intensity and the size varies over time.

Rapid Characterization using Simultaneous Bands

Rapidly evolving targets measurements require extremely short measurement interval of time and measurement of all the spectral bands simultaneously, so the relative intensity of all the spectral bands remains in good agreements. Measurement of the spectral bands consecutively (i.e. filter based spectroradiometer) can result in spectral band relative intensity errors as the target radiant intensity changes during the measurement time.

The MR series FTIR spectroradiometer technology is perfect for maintaining a good relative agreement between the spectral bands, as all of the wavelengths are simultaneously measured through the measurement time.

The Hyperspectral MR Series FTIR Spectroradiometers for Industrial Emission Monitoring


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