ASD FieldSpec 3 User Manual page 72

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Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Note:
Step 9
ASD.Document 600540 Rev. C
Optimize the instrument.
Reopen the control configuration window
Set the white reference and dark current averages to 60 for indoor
illumination, or 150 for outdoor solar illumination.
For example, ASD ProLamp is a DC stabilized light source for lab use and
includes a power supply.
Take white reference.
Reopen the control configuration window.
Set the spectrum average to 30 for indoor illumination, or 100 for outdoor
solar 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 and are walking a large area, you will want a shorter average setting
than if you are collecting spectra in-situ and desire the cleanest spectra
possible.
Observe samples.
64
Chapter 7 Field Measurements
FieldSpec® 3 User Manual