Jadak PHOTO RESEARCH A-TAKT V-7HS, Руководство пользователя

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Chapter 3
– Theory of Operation
13
FIGURE 6
– V-7HS SPECTROMETER
FIGURE 7 - V-7HS BLOCK DIAGRAM
The uncorrected or ‘raw’ spectrum is corrected using factors established during the factory calibration of
the instrument. These factors include wavelength accuracy correction, spectral distribution correction,
and photometric correction. The wavelength calibration is performed using a helium spectral line source.
The line source provides known spectral emission lines that the software uses to map the dispersion of
the grating to the multi-element detector. The helium lines used during the wavelength calibration are
388.6 nm, 447.1 nm, 471.3 nm, 587.6 nm, 667.8 nm, 706.5 nm and 728.13 nm.
Spectrometer CPU
Input Slit
Incident light
512 detector array
Diffracted light
Diffraction
grating
Objective
lens
Aperture Mirror
Optical
radiation
Camera
Viewer
CONTROLLER