研究可见光谱包装生鲜牛肉无损检测包装薄膜的干扰并进行验证,以实现包装生鲜肉制品光谱无损检测。通过采集4种包装薄膜和包装生鲜牛肉的光谱信息,分析包装薄膜对包装生鲜牛肉检测的干扰,提出包装薄膜干扰的消除方法并进行验证。结果表明,包装薄膜的光通量损失影响包装生鲜牛肉光谱无损检测结果,该研究所建立的包装薄膜光谱修正方法能有效消除薄膜对光谱检测的干扰,修正后的包装生鲜牛肉可见光光谱与未经包装的生鲜牛肉光谱具有高度一致性,模型值与测量值的平均相对误差≤4.41%,最大相对误差≤5.11%。解决了包装薄膜对包装生鲜肉无损检测干扰问题,实现了包装生鲜牛肉可见光谱无损检测,为包装生鲜肉制品的质量监控提供了可靠手段。
For the packaged fresh meat non-destructive testing, the spectrum characters and spectrum interfering of four kinds of typical packaging films were analyzed. Furthermore, the interfering mechanism of film on the spectrum detection was discussed and verified. The packaging film interference mechanism and cancellation method were proposed and verified by experiments. The results show that the loss of luminous flux of packaging film affects non-destructive testing in the packaged fresh meat. Packaging film spectral correction method eliminates the interference of packaging film on spectral detection. The modified visible spectrum of packaged fresh beef is highly consistent with the visible spectrum of the unpackaged fresh beef. The average relative error between the predicted value and the measured value is less than or equal to 4.41% and the maximum relative error is less than or equal to 5.11%. The interference of packaging film on non-destructive testing of packaged fresh meat is eliminated and the visible spectrum non-destructive testing of packaged fresh meat is also realized. The presented non-destructive detection method provides a promising quality supervising technology of packaged fresh meat during producing and selling.
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