Oriel MIR8025™ Modular IR Fourier Spectrometers
  • Modular design to meet various measurement requirements
  • Wide spectral coverage; 14,000 to 350 cm-1 (700 nm to 28 µm)
  • High resolution; up to 0.5 cm-1 (0.02 nm at 700 nm and 0.04 µm at 28 µm)
  • Interchangeable beam splitters and detectors
  • USB2.0 interface
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DescriptionSpecifications Models Catalog PDF
MIR8025 FT Spectrometer

The Components

We took the modular approach when designing the MIR8025. We made the components that restrict the use of FT-IR instruments (beam splitters, detectors and sample compartments) interchangeable, so you don’t have to break it apart when your needs change – simply switch out the component(s). A complete MIR8025 FT Spectrometer is made up of:
  • Source or sample
  • MIR8025 Scanner
  • Beam splitter and window
  • Detection system
  • Data acquisition package (included with every MIR8025 Scanner)

How Does it Work?

Fig. 1 illustrates how the MIR8025 works. Very simply, the Scanner modulates the radiation from the source or sample; the A/D board (in the Scanner) digitizes the analog signals from the detection system and sends them to a computer through a USB 2.0 interface. A stand-alone Runtime Version of MIRMatTM Software is included. MIRMat incorporates all instrument control parameters and data acquisition functions.


Fig. 1 The heart of the MIR 8025 FT-IR Spectrometer is the Scanner.

Optical Layout

The MIR8025 uses a scanning Michelson Interferometer. Our optical layout includes corner cubes and a retro-reflector. The unique layout is immune to tilt and shift. The retro-reflector and beam splitter are mounted together, providing accurate alignment while desensitizing the system to vibrations and temperature variations. This “unibody” approach to the beam splitter makes for easy interchangeability with a minimum of realignment required.


Fig. 2 Our optical layout includes corner cubes and a retro-reflector mounted to the beam splitter.

Open Architecture

As modular and flexible as the MIR8025 is , for some applications, even the walls of the Scanner are a restriction. For applications that require the placement of a sample in the beam path, or for systems integrators who want to build an interferometer and electronics into their instrument, we can design an open architecture MIR8025 Scanner.


Fig. 3 Example of an open MIR 8025 FT-IR

Software

We didn’t limit the flexibility of the MIR8025 to its hardware; the software is also flexible. MIRMat 8025 is a powerful Windows™ XP based instrument control and data acquisition and processing application, included with every instrument. For those who wish to do their own programming, we include an Active X interface to control the MIR8025 from your own software.


Fig. 3 To build a complete MIR8025TM FT-IR Spectrometer, you need a scanner, source, and detector. We also offer an accessory bench to house "in-compartment" sampling accessories.