Products

IROS 01 FTIR spectrometer

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  • Resistance to misalignment
  • Spectral range: 470 – 5 700 cm-1 (with ZnSe beamsplitter and Ge photodetector window)
  • Optional 470 – 8500 cm-1 (with DLaTGS photodetector)
  • Optional 350 – 7900 cm-1 (with KBr beamsplitter and photodetector window)
  • Min. resolution: 0.5 cm-1
  • Signal-to-noise ratio: ≥ 40 000 (1 min, resolution 4 cm-1, range 2 000 - 2 200 cm-1)  

  • Great variety of own-produced attached modules
  • Control electronics with USB interface and self-test device
  • Fourier spectrometer weight (without attachments): ≤16 kg
  • Dimensions: 550x300x200 mm
  • External optical output for connecting devices installed outside the cuvette compartment 
   

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IROS FTIR spectrometers include a unique “double cat’s eye” interferometer patented in 1993.

Advantages over classical Michelson interferometer:


  • Resistance to misalignment. There is no need to compensate thermal drifts and vibrations misalignments
  • High beamsplitter resolution
  • The angle of incidence for beam splitter is 90°. It allows avoiding polarization effects, angle of incidence for Michelson
    interferometers are 45° or 30°  


Interferometer optical schemes

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“Double cat’s eye“interferometer optical scheme 
    Michelson interferometer optical scheme  

Interferometer construction


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Interferometer construction reliability and small size allow using spectrometer as a mobile analytical station.

  1. IR radiation source
  2. Input optical focusing system
  3. Interferometer
  4. Parallel beam converting mirrors
  5. Cuvette compartment
  6. Parabolic mirror
  7. Photodetector
     

Wide range of optional modules


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