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Design and test of large-range wave height sensor based on water resistance measurement and fuzzy system

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Abstract

Aiming at the easily damaged capacitive wave height sensor and the requirement for large-range wave height measurement in large-scale wave-making experiment, a large-range wave height sensor based on measuring water resistance is proposed. The mechanical structure, detection circuit, and the selection of main components of the sensor are described in detail. The parallelism of the two measuring electrodes is guaranteed by tensioning and rotating mechanism. In order to overcome the polarization phenomenon of water in the state of electrification, AC power supply is used as signal source. Compensation electrodes are installed to compensate for the effects of water quality and temperature changes. In addition, this paper uses the T-S fuzzy system theory to realize the fault diagnosis of the wave height sensor. Through linearity test, water quality change test, and contrast test with visual wave height measurement system, it can be seen that the sensor has high linearity and is not affected by water quality change, and the measurement results are accurate and reliable.

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Correspondence to Shoujun Wang.

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Liu, N., Wei, R., Zhang, P. et al. Design and test of large-range wave height sensor based on water resistance measurement and fuzzy system. Pers Ubiquit Comput 25, 457–465 (2021). https://doi.org/10.1007/s00779-019-01253-w

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  • DOI: https://doi.org/10.1007/s00779-019-01253-w

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