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    Volume 43, Issue 1 (January 2015)

    A Novel Method of Measuring Fat Content in Soybean Milk Based on Y-Type Optical Fiber Sensor

    (Received 9 September 2013; accepted 3 February 2014)

    Published Online: 2015

    CODEN: JTEVAB

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    Abstract

    A new method of measuring fat content in soybean milk at room temperature (25°C) based on the Y-type optical fiber sensor is presented. The measurement system consists of a light source, Y-type optical fiber sensor, detector, thermoelectric cooler (TEC), preamplifier, second-level amplifier, A/D converter, and microprocessor. Based on the Mie theory, the diffuse reflection light intensity is adopted as the optical parameter representing the fat content in soybean milk. In this way the standard model of the system was established based on the diffuse reflection light intensity (the output voltage) of 40 soybean milk samples with different fat content. A prediction was also made to verify the measurement accuracy of the system (the prediction errors are within ±3 % of results). Results of this study indicate the feasibility of using this technology for soybean milk fat analysis that is suitable for the milk laboratory or field analysis.


    Author Information:

    Zhu, X. Y.
    College of Science, Nanjing Univ. of Aeronautics and Astronautics, Nanjing,

    Zhao, Z. M.
    College of Science, Nanjing Univ. of Aeronautics and Astronautics, Nanjing,

    Jiangsu Key Laboratory of Spectral Imaging & Intelligent sense, Nanjing,

    Wang, L. X.
    College of Science, Nanjing Univ. of Aeronautics and Astronautics, Nanjing,

    Zhang, L.
    College of Science, Nanjing Univ. of Aeronautics and Astronautics, Nanjing,

    Yu, Y. S.
    College of Science, Nanjing Univ. of Aeronautics and Astronautics, Nanjing,


    Stock #: JTE20130224

    ISSN:0090-3973

    DOI: 10.1520/JTE20130224

    Author
    Title A Novel Method of Measuring Fat Content in Soybean Milk Based on Y-Type Optical Fiber Sensor
    Symposium ,
    Committee E07