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Color measurements



Generally, color measurements of objects and thick fluids can be done in different setups, e.g. using reflection probes or an integrating sphere. A spectrometer is needed with a range from 380 to 780 nm and a spectral resolution of 5 nm FWHM. Further a white continuous light source is needed as well as a white reflective tile. For the different applications different probes can be used. A typical setup for color measurements in reflection is given below.


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Components used in the color measurement setup are depicted in the following table:

 

Color Reflection with fiber optic probe

Color Reflection with integrating sphere

Color Reflection in thick fluids

Spectrometer

 

AvaSpec-128, Grating VA (360-780nm), 100µm slit

AvaSpec-256, Grating VA (360-780nm), 50µm slit

AvaSpec-2048, Grating BB (360-780nm), 200µm slit, DCL-UV*

Software

AvaSoft-full and AvaSoft-Color

Light source

AvaLight-HAL with PS-24V-1.25A power supply

Fiber optics

FCR-7UV200-2-ME Reflection probe with 6x200µm illumination fibers, 1 200µm read fiber, UV/VIS, 2m, SMA

1 pc. FC-UV600-2 illumination fiber 600µm UV/VIS, 2m, SMA

1 pc. FC-UV600-2 detection fiber 600µm UV/VIS, 2m, SMA

FCR-7UV200-2-45 Reflection probe with 45 degree window with 6x200µm illumination fibers, 1 200µm read fiber, UV/VIS, 2m, SMA

Accessories

RPH-1 probe holder

WS-2 reference tile

AvaSphere-50-REFL integrating sphere

WS-2 reference tile

WS-2 reference tile

* not necessary for reflection probe, only for integrating sphere and high speed applications