Multisensor fibre optic for electrolyte density measurement in lead-acid batteries

Paz, A.; Acevedo, Jorge Marcos; Gandoy, J.D.; Vázquez, Aitor

doi:10.1109/iecon.2006.347636

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…These losses can affect the sensitivity of the sensor. Paz et al [8] developed a polymer fiber sensor for measuring the real-time density of the electrolyte at three different locations in lead-acid batteries. The circuit was optimized with led thermal behavior.…”

Section: Literature Reviewmentioning

confidence: 99%

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Online MEMS-Based Specific Gravity Measurement for Lead-Acid Batteries

Adhav¹,

Sonawane

Patil

2023

Adv. technol. innov.

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Traditional methods for measuring the specific gravity (SG) of lead-acid batteries are offline, time-consuming, unsafe, and complicated. This study proposes an online method for the SG measurement to estimate the state-of-charge (SoC) of lead-acid batteries. This proposed method is based on an air purge system integrating with a micro electro mechanical system sensor. Through the proposed strategy, the SoC measurement achieves up to ±1% accuracy. The technique has an SG accuracy of ±0.002% which is better than the glass hydrometer accuracy of ±0.005% in the battery charge reading. The experimental results show that the high accuracy and precise measurements of SG and SoC can be conducted by using the proposed method.

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Section: Literature Reviewmentioning

confidence: 99%

“…The online SG measurement displays the status of the battery like a fuel gauge. The life of a lead-acid battery is dependent on both the charging and the discharging states [8].…”

Section: Introductionmentioning

confidence: 99%

Online MEMS-Based Specific Gravity Measurement for Lead-Acid Batteries

Adhav¹,

Sonawane

Patil

2023

Adv. technol. innov.

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“…In the sensitive zone, a portion of light is refracted to the external medium (electrolyte) due the refractive indexes differences (fiber-electrolyte). In this way, the losses depend on the refraction index of the environment, and it depends on the density, the principle of functioning of the sensor can be consulted in [2][3] [5][6] [8]. Fig.…”

Section: The Multipoint Fiber Optic Sensormentioning

confidence: 99%

“…Internal parameters can only be measured by the use of special sensors; most of the known methods are based on electrolyte measurements. In this way, there are different sensors developed to measure physical-chemical parameters, [2]- [5].…”

Section: Introductionmentioning

confidence: 99%

Density measurement into lead-acid batteries with multipoint optical fiber sensor

Marcos-Acevedo

Cao-Paz

Río-Vázquez

et al. 2009

2009 IEEE Intrumentation and Measurement Technology Conference

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There are numerous applications for the use of leadacid batteries: automotive applications, telecommunications, UPS, remote-area power-supply systems, etc. Modern energystorage applications require higher reliability than has been demanded in the past; in addition, systems have been developed for monitoring and managing the batteries so as to achieve duty in service. For determination of battery state, it is necessary to know the state of charge (SOC) and the state of health (SOH), one of the physical parameters with information about the SOC is the electrolyte density. An electrolyte density sensor must be able to measure the electrolyte density at different places because the battery-density varies with location. This paper presents a plastic optical fiber sensor developed for measuring in real time the electrolyte density into lead-acid batteries. The sensor measures the density at four different heights.The environment in the batteries that use an electrolyte with Sulfuric Acid (H 2 SO 4 ) at an elevated temperature during the use process is very hard and the accuracy of the density readout must be maintained through the useful life of the vehicle. We have done an accelerated test to check the reliability sensor. The test duration was over one calendar year (9,552 hours) using a sensor with four optical fibers. For the test, the electrolyte acid density was set to 35%, and the temperature to 70 degrees Celsius. An electronic system for emission and detection of light collected data periodically to assess the transmission loss in the fibers as they aged. In this paper we present the test results.

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“…Smart battery management systems (SBMSs) have been offered as a solution to the problems encountered with traditional BMSs. Each smart cell is an integrated module with a microprocessor to measure voltage, current, and temperature and to estimate the state-of-charge (SOC) and state-of-health (SOH) of the battery cell, forming an SBMS, which is a cell-level BMS (Cao y Paz et al, 2006). Since there are no direct connections between cells in an SBMS, it is more fault tolerant and scalable than a traditional modularized BMS.…”

Section: Introductionmentioning

confidence: 99%

Estimation of State of Charge of Battery Used In Electric Vehicles With Wireless Battery Management System

Lohar,

Kumar

2023

IJRITCC

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This research paper presents a comprehensive investigation into the development and analysis of a wireless battery management system (BMS) using MATLAB Simulink. The primary objective of this study is to create an efficient, reliable, and scalable BMS that caters to the demands of various applications, such as electric vehicles, grid energy storage, and portable electronics. Our methodology involves designing and simulating key BMS components, including state estimation algorithms, fault detection mechanisms, and communication protocols, within the MATLAB Simulink environment. The paper first elucidates the motivation for adopting wireless technology in BMS, emphasizing its advantages over traditional wired systems. Subsequently, we explore the intricacies of the proposed wireless BMS architecture, detailing the implementation of essential features such as state-of-charge estimation, fault diagnosis, and thermal management. We also address the challenges associated with wireless communication, including latency, security, and energy efficiency, by incorporating robust communication protocols and power management strategies. Through rigorous simulations, we demonstrate the efficacy of the proposed wireless BMS, showcasing its ability to ensure optimal performance, safety, and longevity of battery packs. The outcomes of this research not only contribute to the advancement of BMS technology but also pave the way for further improvements in battery-powered systems. In conclusion, this paper offers a holistic perspective on wireless BMS design, emphasizing its potential to revolutionize energy management and extend the applications of battery technology in various domains.

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Multisensor fibre optic for electrolyte density measurement in lead-acid batteries

Cited by 5 publications

References 3 publications

Online MEMS-Based Specific Gravity Measurement for Lead-Acid Batteries

Online MEMS-Based Specific Gravity Measurement for Lead-Acid Batteries

Density measurement into lead-acid batteries with multipoint optical fiber sensor

Estimation of State of Charge of Battery Used In Electric Vehicles With Wireless Battery Management System

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