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SpectraWiz View Menu
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Scope mode.............displays uncompensated spectral data
Absorbance mode........display requires dark & reference for AU
Transmission mode......display requires dark & reference for %T
also used for reflectance measurements
Irradiance mode........display Watts,Micro-Watts,Lumens,Moles,fc
Ref spectra............display of reference spectra minus dark
Channel................display selection for logical units
Multi-Graphs...........display channels in multi-windows
SnapShot...............freeze display or run in realtime
Wave Ratio.............select 2 wavelengths for ratio display
Y scale................setup max Y-axis or set Y to log scale
Zoom...................X and Y axis area you want to see
Graph Trace as.........Overlay or 1st or 2nd Derivative
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View -> Scope mode:
Allows user to view spectrometer information in realtime.
Typically, this will be light emission from samples in
various forms for specific wavelength measurement applications
which include emission, fluorescence, and Raman (laser
induced scattering).
Scope enables viewing emission from LEDs, laser diodes, flour-
escent lamps, plasma, ignited metal or gas emission lines,
emission lines from the stars when mounted in a telescope,
light bulbs (all types), neon and other types of signs,
UV or laser induced fluorescence from samples, and Raman
scattering from samples.
Each pixel is graphed on the x_axis as wavelength in nano-
meters using the calibration parameters entered via setup.
Scope view will be affected by options available in
the Setup menu including; detector integration rate (spectra
signal level), number of scans to average (Y axis smoothing),
pixel resolution (X axis smoothing), Temperature compensation
(pulls dark spectra level to near zero over operating
temperature range).
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View -> Absorbance:
Displays absorbance at pixel n using the current sample,
reference, and dark data sets:
A(n)=-log((sample(n)-dark(n))/(ref(n)-dark(n)))
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View -> Transmission: (also use for Reflectance)
Displays percent transmission at pixel n using the current
sample, reference and dark data sets:
T(n)=((sample(n)-dark(n))/(ref(n)-dark(n))*100
Percent transmission is mathamatically eqivalent to percent
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