Bomem-GRAMS User's Guide
Bomem-GRAMS User's Guide
Bomem-GRAMS User's Guide
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Section 4.1<br />
Description<br />
Threshold determines the maximum value (in percentage) of the ratio of<br />
the average amplitude in the Spectral Range against the maximum<br />
spectrum amplitude.<br />
If the ratio is greater than the threshold value, a saturation warning is<br />
given to the user and put in the audit log (see Appendix C on page 45).<br />
• Use Default restores the default values.<br />
4.1.2 Align<br />
The Align command is used to display a spectrum or interferogram that is<br />
updated after each scan of the spectrometer. This is useful to adjust accessories<br />
for maximum throughput and to check if the signal intensity is acceptable.<br />
A readout of the ZPD amplitude as a percentage of the maximum allowed ZPD<br />
is also provided. When the Align command is selected, <strong>Bomem</strong>-<strong>GRAMS</strong><br />
switches to the page used for alignment and the Align dialog box appears.<br />
Align<br />
This dialog box is used to set align parameters before data acquisition is started.<br />
• Spectral Range Start and End define the displayed spectral region.<br />
• Show Scan direction allows showing the scans in one direction only<br />
(direction 0 or direction 1), or in both directions simultaneously.<br />
• Data type determines the type of data that will be displayed.<br />
IGram: raw interferogram<br />
Single-Beam: single-beam spectrum<br />
22 <strong>Bomem</strong>-<strong>GRAMS</strong> <strong>User's</strong> <strong>Guide</strong>
Change language