ASD Document 600540 Rev. J 67 FieldSpec® 3 User Manual
www.asdi.com Chapter 7 Field Measurements
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.
Step 6 Take a White Reference (or baseline reference).
Step 7 Observe samples.
7.10.2 Indico Application
Step 1 Follow the instructions for plugging in the instrument and starting the Indico
software.
Step 2 Attach any required foreoptic accessories.
Step 3 Open a new project either by selecting File->New Project from the
pull-down menu.
Step 4 Type in a name for this project and click on the OK button.
Step 5 Select Spectrum->Sample Count/Average from the pull-down menu.
Step 6 Set the Instrument Sample Count to 100 for outdoor solar illumination
and click OK.
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.
The project screen will return, and the sample count will be displayed in the
status box at the bottom of the graph.
Step 7 Make sure the light source is on and the probe input end is pointed at the
white reference panel.
Step 8 Select Spectrum->Take a Baseline [Alt+S, B] [Ctrl+R]. When
prompted, click Yes, take a new white reference.
• The FieldSpec spectroradiometer optimizes the detector sensitivities for
the probe and light source currently being used.
• The dark offset and white reference will also be measured and saved.
• Status bars will indicate each process.
When optimization and white reference are complete, you should see a
straight baseline across the Project Graph at 1.00 (100%).
Step 9 Select the Display->Reflectance [Alt+D, R] for the reflectance mode.
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