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Capacitive electrode sensor implanted on a printed circuit board designed for continuous water level measurement

Abdullahi, Salami Ifedapo and Habaebi, Mohamed Hadi and Abdul Malik, Noreha (2019) Capacitive electrode sensor implanted on a printed circuit board designed for continuous water level measurement. Bulletin of Electrical Engineering and Informatics, 8 (2). pp. 452-461. ISSN 2089-3191 E-ISSN 2302-9285

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Abstract

Water level sensors are one of the practical ways to get the actual measurement of the depth of a dam or canal. The ease of deployment and easy data acquisition makes them widely used in many fields. Therefore, it will be advantageous to have a miniaturized water level sensor for easier mobility and deployment. A novel method for measuring water level using a Printed Circuit Board has been proposed in this paper. The design stages of circuit sketching, printing of sketch on PCB and etching are discussed for the electrode water level sensor. A signal conditioning circuit is necessary to maintain a steady flow of current from the power source. The fabricated electrode water level sensor was tested based on its capacitive effect while charging up and the amount of current at each electrode finger at the saturation stage. The hardware enablers for this test were the multimeter and LCR meter. Arduino microprocessor was used to test and measure the transient response time for each electrode finger. The transient response sensitivity of the electrode sensor is measured to be 0.0873 millisecond/cm while the resolution of the electrode sensor is 0.1cm over a range of 30cm water level. A multiple correlation of 0.921 was achieved for the water level, measured current and measured capacitance with P-values less than 0.05 indicating strength of the data obtained from the tests conducted. The result showed strong evidence that the electrode water level sensor can be an alternative method of measuring water level.

Item Type: Article (Journal)
Additional Information: 6727/71619
Uncontrolled Keywords: Capacitive electrode, Continuous water level sensor, Energy security, PCB water level sensor, Signal conditioning circuit, Water level sensor
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK452 Electric apparatus and materials. Electric circuits. Electric networks
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Dr. Mohamed Hadi Habaebi
Date Deposited: 16 Apr 2019 10:07
Last Modified: 16 Apr 2019 10:48
URI: http://irep.iium.edu.my/id/eprint/71619

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