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A calibration technique for a parallel-wire depth probe with conductivity compensation

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Abstract

A new technique of calibrating a parallel-wire depth probe is presented. The technique allows the effects of electric conductivity of liquids to be compensated. The advantage of the probe lies in its simple AC circuitry employed which consists of only a variable resistor together with one AC input and an AC output. The compensation technique employs a two-staging compensation method that allows only one calibration curve to be used for measuring the depth of various liquids with different electric conductivity values.

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References

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Authors and Affiliations

  1. School of Mechanical and Production Eng., Nanyang Technological University, Nanyang Avenue, 2263, Singapore

    T. N. Wong & K. T. Ooi

  2. School of Electrical and Electronic Eng., Nanyang Technological University, Nanyang Avenue, 2263, Singapore

    S. P. Zhu

Authors
  1. T. N. Wong
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  2. K. T. Ooi
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  3. S. P. Zhu
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Wong, T.N., Ooi, K.T. & Zhu, S.P. A calibration technique for a parallel-wire depth probe with conductivity compensation. Experiments in Fluids 20, 429–432 (1996). https://doi.org/10.1007/BF00189381

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  • DOI: https://doi.org/10.1007/BF00189381

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