Sensors and Materials
ISSN 0914-4935

Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials,
Volume 30, Number 5(1) (2018)

Copyright(C) MYU K.K. All Rights Reserved.
pp. 957-977
S&M1554
https://doi.org/10.18494/SAM.2018.1744
Published: May 18, 2018

Proximity Capacitance Array Sensor Based on Data Aggregation Strategy for Rainfall Detection [PDF]

Pengzhan Chen and Qingqing Yu

(Received September 19, 2017; Accepted January 31, 2018)

Keywords: rainfall detection, proximity capacitance sensor, sensor array, data aggregation

People need to measure rainfall accurately in many cases, and hence improving the accuracy and real-time performance of rainfall sensors is a current problem. A new type of rainfall sensor based on a proximity capacitance array is proposed. The sensor can be used to detect the rainfall coverage of an insulator surface accurately and efficiently. According to the different characteristics of dielectric constants of different materials, the water film thickness on the surface of the insulator is measured by using the principle of proximity capacitance, and a comprehensive evaluation index of sensor performance is proposed. The finite element method is utilized to compare the characteristics of capacitance sensors using three types of electrode to improve sensor penetrability and achieve high water film detection sensitivity. An electrode array is designed according to optimal results, and multielectrode measurement data are aggregated to determine the amount of rainfall. Moreover, an experimental sensor platform is constructed to verify the proposed rain sensor based on a proximity capacitance array. The designed rainfall sensor possesses good accuracy, and the measurement error is about ±2.3%. The proposed rainfall sensor allows for accurate real-time measurements of rainfall on insulator surfaces with a certain thickness.

Corresponding author: Pengzhan Chen


Cite this article
Pengzhan Chen and Qingqing Yu, Proximity Capacitance Array Sensor Based on Data Aggregation Strategy for Rainfall Detection, Sens. Mater., Vol. 30, No. 5, 2018, p. 957-977.


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