The Midac Model M4401-SP Open Path Fourier Transform Infrared (FTIR) field spectrometer is a portable FTIR instrument providing hyperspectral measurements in the 1.5 to 15.5 μm spectral range. It is ideally suited for providing point measurements in support of atmospheric sciences, wildfire ecology, or volcanology. In particular, the lightweight and portable nature of the instrument, coupled with high spectral resolution and broad spectral range, has made it a critical and key instrument used by the UK volcanology community, which often must plan rapidly around unpredictable eruptions in often difficult to reach areas.
Technical Specification
Value
Spectral Range
5000 - 700 cm-1
Optical Resolution
programmable from 0.5 - 32cm-1
Detector type
Sterling Pump Cooled MCT
Beam Splitter
ZnSe
Power Source
12 V
Weight
7.5 kg
Size
36 × 18 × 17 cm
Accessories
Open Path Input Optics
-10” Φ Newtonian telescope
3” Φ Newtonian telescope, 10 millirad (mrad) Field Sources
20” diameter collimated beam form IR glower within a 20” parabolic gold reflector
Field portable IR-301 blackbody sources with attachment for connection to FTIR
Example Applications
Atmospheric measurements of carbon dioxide (CO2), sulfur dioxide (SO2) and methane (CH4)
Volcanology
Measurements of wildfires
Biosphere-atmosphere interactions
Reflectance measurements of materials in the infrared region
Geological surveying
Units Available for Loan
Model and Serial Number
Documents and Software
Midac Corporation Open Path FTIR Model M4401-SP #150
