柔性容器中液体的间接电导率测量

IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI:10.1109/IMTC.1997.610260

S. Nihtianov, G. Meijer

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引用次数: 10

摘要

本文介绍了一种间接测量柔性Tetra(利乐砖无菌)食品容器中液体食品电导率的方法。该方法用于无菌包装液体食品的强化(100%)无创无菌性检测。它也可以应用于其他具有类似结构的集装箱。建立了测量阻抗的电模型，该模型由几个元件组成。其中一些取决于液体的电导率/spl σ /。推导了被测阻抗的有源分量R与食品电导率之间的关系。对该方法在工业条件下的应用进行了灵敏度和鲁棒性研究，并给出了实验结果。

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Indirect conductivity measurement of liquids in flexible containers

This paper presents an indirect method for measuring the conductivity of liquid foods, packed in flexible TEA (Tetra Brik Aseptic) food-containers. The method is intended for intensive (100%) non-invasive sterility-testing of aseptically packed liquid food-products. It can also be applied for other containers, which have similar construction. An electric model is developed for the measured impedance, which consists of a few components. Some of them are dependent on the conductivity /spl sigma/ of the liquid. Relation is derived between the active component R of the measured impedance and the conductivity of the food. The sensitivity and the robustness of the method is investigated with respect to its application under industrial conditions and experimental results are presented.

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IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings

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