Indico Application - ASD TerraSpec User Manual

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6.3.2

Indico Application

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ASD Document 600541 Rev. G
Open the pull down menu Control -> Adjust Configuration [Alt+C,C] in
3
the RS application.
Set the white reference number of scans to 30, and dark current averages to 60
scans.
Set the spectrum average (or sample count) to 30 for indoor or artificial
illumination.
The actual spectrum average will be determined by striking a compromise
between noise reduction through averaging the spectra and the time desired
for each spectrum collection. For instance, if you are using the instrument in
the field, are walking a large area, and are making frequent spectral readings,
you will want a shorter average setting than if you are collecting spectra
in-situ and desire the cleanest spectra possible.
Optimize the instrument to the Spectralon.
Spectralon is an example of a reference standard to take a white reference
against. (Labsphere, Inc., Shaker St., PO Box 70, North Sutton, NH
03260-0070, PH: 603-927-4266, FX: 603-927-4694, E-mail:
sales@labsphere.com, Website: www.labsphere.com). Spectralon is also
available from ASD.
Take a White Reference (or baseline reference).
Observe samples.
Follow the instructions for plugging in the instrument and starting the Indico
software.
Attach an appropriate accessory. Remember that the TerraSpec spectrometer
requires an external (artificial) light source.
Open a new project either by selecting File->New Project from the
pull-down menu.
Type in a name for this project and click on the OK button.
Select Spectrum->Sample Count/Average from the pull-down menu.
Set the Instrument Sample Count to 30 for indoor or artificial
illumination.
Note: The actual spectrum average will be determined by striking a
compromise between noise reduction through averaging the spectra
and the time desired for each spectrum collection. For instance, if you
are using the instrument in the field, are walking a large area, and are
making frequent spectral readings, you will want a shorter average
setting than if you are collecting spectra in-situ and desire the cleanest
spectra possible.
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Chapter 6 Field Measurements
TerraSpec® User Manual