Performance Analysis of Color Measurement System Based on Spectrometer

摘要

Spectral measurement tools are the most widely used color measurement instrument, its various advantages will affect the operator to distinguish colors directly. Although instruments are tested before products come on to the market, but in the using process, instrument will change over time, the instrument will aging gradually, leads to the deviation of color measurement. In order to ensure the accuracy of the measurement, it is very important to calibrate instruments after using a long time. The Lab value of 14 BCRA samples was measured using a marine optical USB4000 spectrometer, a marine optical HL-2000 light source, an optical fiber and a reflective probe, a reflection measurement support, and a standard whiteboard. Using the color difference formula, CIE1976 color difference formula, XYZ value and the mean difference to evaluate the repeatability, repro-ducibility, accuracy and indication error of the color measurement system. Finally, the conclusions were drawn good overall performance of the spectrometer.