| This paper is to propose a portable color measurement for liquid color measurement. In hemodialysis patients from the clinical status of anemia.It is necessary to test blood to determine the practical problems. Based on color theory and the basic principles of color measurement, Research a measurement instrument which the blood of a color information can be read directly and compared with the calibration data. Its advantages are small, low cost and high performance.By the research of the basic theory of color.design method of measuring instruments and measurement principles.design a kind of appropriate precision, portable color measurement for liquid color measurement instrument. This system mainly studied from three parts which including the lighting system, coior-coded system and data processing system. Lighting system consists of light source, collimating lens and bandpass filter. high-brightness white light source LED is used as illuminant.TCS230 color recognition system is used as a color sensor to measure the liouid to treat the color information of the initial sample identification. Data communication with the host computer,is achieved by Data processing system which based on the CY7C68013A host chip microcontroller and USB2.0 interface technology. |
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