89C52-based Research For Sensing System Of Print's Color Quality

Color printing reproduction process is the original color information disaggregated conversion, transmission and return process. A beautiful color print color million to reflect the objective reality of the world and therefore it is highly welcomed. According to national standards GB 7705-1987《printed just print》to print quality control requirements informed that the color print quality is an important basis for evaluating the quality of print. So how loyal to the reproduction of the original manuscripts, the printing technology is one of topics of the theorists.Density , color meters and spectrophotometers (spectral photometer) is the most commonly used color printing measurement instruments,Their color reproduction process control provided important information, But those portable device are expensive,and they do not have on-line testing functionality. In practical application, In practical application, these devices need measurement color information in the designated position, and then compare the value of measurements and standards, the achievement of print quality control..CIEXYZ have been widely used in printing industry to control the printing process and evaluate printing quality, the paper introduced a new online testing system quality color printed materials, basic on CIE XYZ chromaticity, Some aspects in characteristics of uniform color space and color difference calculation are discussed in the paper. Single chip computer is the core processing components, using color filter as dichotic components, photovoltaic components as photovoltaic conversion, ADC0809 as module conversion components, dot matrix characters LCD module displayed. Testing of the system based on the principles of color color accurately calculate the value of the three stimulus CIEXYZ and apparatus work stability, good performance.