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کشاورزی::
رنگسنج
Tristimulus colorimeters are used to meas- ure color in certain food applications.
Colorimeters, having broad band-pass filters, do not measure the spectral data.
Figure F5.1.8 A colorimeter reproduces the eyes' response for one illuminant and one observer.
Color spectrophotometers do not have the limitations of colorimeters because they measure the percent reflectance or transmittance (spectral data) wave- length by wavelength across the visible spectrum.
It should be noted that both spec- trophotometers and tristimulus colorimeters are primarily utilized as instruments to measure the color difference between a standard and a trial, rather than as absolute devices.
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