{"id":40019,"date":"2022-09-09T15:26:30","date_gmt":"2022-09-09T08:26:30","guid":{"rendered":"https:\/\/techmaster.com.vn\/?p=40019"},"modified":"2022-12-27T09:06:00","modified_gmt":"2022-12-27T02:06:00","slug":"color-meter-calibration","status":"publish","type":"post","link":"https:\/\/techmaster.com.vn\/en\/color-meter-calibration\/","title":{"rendered":"Color Meter Calibration"},"content":{"rendered":"
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\"Color<\/a><\/div>\n
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Color is one of the important elements to evaluate product quality as well as attract consumers. Especially for industries such as paint production, plastic products, printing, etc., color is a decisive elements to determine whether the product meets the requirements or not. So colorimeter (color meter) has been commonly used to check the quality of products. Calibration of the colorimeter is essential to ensure stable operation.<\/p>\n

1. What is Color Meter\/Colorimeter ?<\/strong><\/h2>\n

A colorimeter can measure the absorbency of light waves. During colour measurement the change in the intensity of electromagnetic radiation in the visible wavelength region of the spectrum after transmitting or reflecting by an object or solution is measured. Colorimeters can be classified into two types:<\/p>\n

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  • Visual<\/li>\n
  • Photoelectric.<\/li>\n<\/ul>\n

    Visual colorimeters are of two types:<\/p>\n

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    • Visual absorption meters\/colour comparators<\/li>\n
    • True visual colorimeter or tristimulus colorimeter.<\/li>\n<\/ul>\n

      Tristimulus colorimeter.<\/em><\/strong><\/h3>\n

      Typically a tristimulus colorimeter is used to measure light and correlate it to the X (red), Y (Green\/Yellow) and Z (Blue) components of CIE1931 color space or CIE1964 color space. Another approach to correlate color to human vision on the L*a*b* color space. The L* value relates to the lightness of a color using a numerical range of 0\u2212100 where the darkest color (or blackness) is equal to zero and the lightest (or whitest) color is equal to 100. The a* values are represented as the red to green range where red colors are the positive values and green colors are the negative values. The b* values are represented as the blue to yellow color range where yellow colors are the positive values and blue colors are the negative values. These a* and b* values are plotted on an XY axis with the L* value piercing the center of the plot as a three-dimensional space. When a* and b* values are measured at zero, the color indicated is a true neutral falling right in the center of the red to green space or the blue to yellow space.<\/p>\n

      2. Applications of color meter\/colorimeter ?<\/strong><\/h2>\n

      The colorimeter\/color meter is designed for a variety of applications in many industries:<\/p>\n

      – For the paint industry, this device is used to monitor colors in the paint production process. Check that the finished products have met the standard color or not. At the same time, it supports color mixing to create new paint colors.<\/p>\n

      – For the printing industry, it is used to monitor the color of printed samples. Ensure print products meet quality requirements. In addition, early detection of substandard products for removal or adjustment.<\/p>\n

      – For the plastic manufacturing industry, monitor the color quality of the products. Ensure the color of the finished products meets the standards. Because color in the plastic industry is a decisive factor in both quality and consumer attraction.<\/p>\n

      – In laboratories and research, various types of colorimetric spectrometers are often used to measure color and analyze samples.<\/p>\n

      3. Color Meter Calibration Process<\/strong><\/p>\n

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      3.1 Why Color Meter Calibration?<\/strong><\/h3>\n

      Colorimeter is important in ensuring output quality for paint, plastic, printing products, etc. Therefore, calibration of this device is extremely necessary. As it will help ensure stability and accuracy for related operations. Besides, the calibration also helps to detect equipment failures (if any) early for timely correction and repair.<\/p>\n