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本文叙述了皮肤病变测定仪的理论、结构及实验结果。依据反射光谱和色度学理论,将被测物体表面反射光束分解为单色光束,通过光电转换系统变换成电信号,输入微机进行数据处理,得出被测物体反射光潜的三刺激值。比较正常皮肤和病变皮肤的反射光谱、三刺激值和色度差,可以确定皮肤病变的性质,为医生诊断提供定量分析数据。仪器采用了光纤探头和微机处理系统,使其具有精度高,使用方便以及智能化的特点。用样机进行了白癜风等个别皮肤病例的诊断、医疗效果分析实验,取得了良好的预期结果。
This article describes the theory, structure and experimental results of skin lesion detector. According to the theory of reflection spectrum and colorimetry, the surface reflected beam is decomposed into monochromatic beams, which are transformed into electrical signals by photoelectric conversion system and input into the microcomputer for data processing. The tristimulus value of the measured object is obtained. Comparing the reflectance spectra, tristimulus values, and chromaticity differences between normal and diseased skin to determine the nature of skin lesions and provide quantitative data for physician diagnosis. The instrument uses a fiber optic probe and computer processing system, so that it has high precision, easy to use and intelligent features. With the prototype for the diagnosis of vitiligo and other skin cases, medical effects analysis experiments, and achieved good expectations.