Sensors 2010, 10(4), 2587-2608; doi:10.3390/s100402587
Article

A Multi-Point Sensor Based on Optical Fiber for the Measurement of Electrolyte Density in Lead-Acid Batteries

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Received: 26 January 2010; in revised form: 10 March 2010 / Accepted: 16 March 2010 / Published: 25 March 2010
(This article belongs to the Section Physical Sensors)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: This article describes a multi-point optical fiber-based sensor for the measurement of electrolyte density in lead-acid batteries. It is known that the battery charging process creates stratification, due to the different densities of sulphuric acid and water. In order to study this process, density measurements should be obtained at different depths. The sensor we describe in this paper, unlike traditional sensors, consists of several measurement points, allowing density measurements at different depths inside the battery. The obtained set of measurements helps in determining the charge (SoC) and state of health (SoH) of the battery.
Keywords: plastic optical fiber; bending losses; electrolyte density; liquid level; lead acid batteries; state of charge; battery maintenance
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MDPI and ACS Style

Cao-Paz, A.M.; Marcos-Acevedo, J.; Del Río-Vázquez, A.; Martínez-Peñalver, C.; Lago-Ferreiro, A.; Nogueiras-Meléndez, A.A.; Doval-Gandoy, J. A Multi-Point Sensor Based on Optical Fiber for the Measurement of Electrolyte Density in Lead-Acid Batteries. Sensors 2010, 10, 2587-2608.

AMA Style

Cao-Paz AM, Marcos-Acevedo J, Del Río-Vázquez A, Martínez-Peñalver C, Lago-Ferreiro A, Nogueiras-Meléndez AA, Doval-Gandoy J. A Multi-Point Sensor Based on Optical Fiber for the Measurement of Electrolyte Density in Lead-Acid Batteries. Sensors. 2010; 10(4):2587-2608.

Chicago/Turabian Style

Cao-Paz, Ana M.; Marcos-Acevedo, Jorge; Del Río-Vázquez, Alfredo; Martínez-Peñalver, Carlos; Lago-Ferreiro, Alfonso; Nogueiras-Meléndez, Andrés A.; Doval-Gandoy, Jesús. 2010. "A Multi-Point Sensor Based on Optical Fiber for the Measurement of Electrolyte Density in Lead-Acid Batteries." Sensors 10, no. 4: 2587-2608.

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