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66 HYPERION User Manual Bruker Optik GmbH
Operation 4
4.7 Checking the IR signal intensity
Before starting the spectroscopic sample analyses, it is advisable to check the detected
IR signal intensity. The precious procedure depends on the measurement technique
(transmission, reflection, ATR) you intend to apply.
4.7.1 Procedure in transmission mode
1
First check the condenser setting and correct it, if required.
☞
For information about this topic, see section 4.6.
➣
Note: The condenser is set correctly, when you a sharp image of a bright circle and
the circle is aligned to the center of cross hairs when you look through the binocular.
2
Activate the measuring mode by actuat-
ing the IR button
①
on the operating
panel of the microscope.
Make sure that the transmission mode is
activated.
3
Make sure that the beam path is not obstructed, for example by a polarizer, a sample or a
closed knife-edge aperture (i.e. the knife-edge aperture has to be open completely).
4
Open the OPUS software program.
Select in the
Measure menu the
Advanced Measurement function.
Load an adequate experiment file.
☞
For information about the available
standard experiment files, see
appendix B.
Click in the Measurement dialog on the
Check Signal tab.
Make sure that the Interferogram option
button is activated.
①
The amplitude value indicates the
currently detected signal intensity.
Interferogram option
button (activated)
Interferogram