Geometric Design of Capacitive Sensor for Liquid Membrane Detection

Abstract:

A multi-spiral capacitive sensor is proposed to improve the sensor performance, and the relation between the geometric parameters design of the sensor and the sensor performance is discussed. Compared to traditional sensors, under the same measurement conditions, the electrical field distribution of the multi-spiral-shaped sensor is presented. The detail effects of the sensor design parameters, such as gaps between the sensor electrodes, the effective area and the geometry of the sensor plates are qualitative analyzed. The experimental results prove that the complex structure sensor can improve the measurement linearity, signal strength and measurement sensitivity.

• Periodical: Applied Mechanics and Materials (Volumes 687-691)
• Pages: 906-909
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.687-691.906
• Online since: November 2014
• Authors: Jing Xue, Nan Li, Xiang Dong Yang
• Keywords: Capacitive Sensor, Geometric Design, Liquid Membrane Detection

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