Measurements

Perkin-Elmer 2000 FT-IR

This is a Fourier transform spectrometer, which operates in the range of wavelengths between 1.3μm and 27μm. Although excellent for measurements of transmittance on glass, for which it was designed, is to reflect on mirrors and windows, this tool is not adequate for the study of IR materials absorbent. The Lambda900 employs an integrating sphere for the measures that can gather all the radiation reflected from a material, while the FT-IR-2000 uses a sensor detects only the radiation reflected directly but you can not understand what is going in different directions by specular direction. In contrast with the windows and mirrors, it has to do with materials whose surface roughness is well lower than that of the incident radiation. This leads to a well-collimated beam in sensor direction.