Getting Started with Spectrum Software . 91
Figure 82 Spectra of methane at 4 cm
−1
resolution as measured (top) and with
AVI (bottom)
AVI correction can only be performed if an AVI Calibration has been set up for the current
configuration and resolution.
AVI Calibration
To set up an AVI Calibration:
Select Standardize from the Measurement menu.
OR
Select AVI from the Adjustments Toolbox, accessed via the Setup Instrument
Advanced tab.
Follow the instructions on-screen. For further information, refer to the Spectrum
on-screen Help file.
Figure 83 AVI Calibration dialog prompting the user to insert the methane cell
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