Design, development and application of a real???time capacitive sensor for automatically measuring liquid level

dc.creatorBENTO, RODRIGO T.
dc.creatorSILVA, ROGER W.O.
dc.creatorDIAS, LUCAS A.
dc.creatorFERRUS FILHO, ANDRE
dc.creatorPITTA, ANTONIO J.C.
dc.date2019
dc.date2019-12-02T17:40:22Z
dc.date2019-12-02T17:40:22Z
dc.date.accessioned2023-09-28T14:12:39Z
dc.date.available2023-09-28T14:12:39Z
dc.identifier2523-3971
dc.identifierhttp://repositorio.ipen.br/handle/123456789/30401
dc.identifier7
dc.identifier1
dc.identifier10.1007/s42452-019-0770-3
dc.identifier0000-0002-1797-9652
dc.identifierSem Percentil
dc.identifierSem Percentil CiteScore
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9000630
dc.descriptionIn the present study a real-time capacitive sensor based on a capacitance step method is designed, developed and applied on measuring the liquid level by immersion. The capacitive sensor consists of two electrodes from copper plated phenolite plates separated by a gap distance and mounted inside a non-conductive storage tank. Water is used as the dielectric material. The analyzed sensor behavior with liquid level variation is semi-linear and obtained in function of the output voltage variation by using proper signal conditioning circuit. For converting the voltage variation into level variation, a parallel R???C circuit is used instead of conventional bridge circuit. Under suitable parameter settings it provided good reading accuracy. The experimental results demonstrate the high efficiency of the proposed model, which confirm the satisfactory performance of the capacitive sensor for liquid level measurement. The sensor presents an excellent ease of construction and installation, linked to the good measurements precision and high autonomy of system operation. The behavior experiments under different salt concentrations show that the water chemical composition does not interfere on the sensor operation. The proposed model exhibits a promising employment in several applications, such as control equipment for irrigation, biomedical area???in the interaction between antibody???antigen or protein-DNA, aerospace and pharmaceutical industry, gas sensors, and automation solutions.
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionCNPq: 168935/2018-0
dc.relationSN Applied Sciences
dc.rightsopenAccess
dc.subjectsensors
dc.subjectreal time systems
dc.subjectcapacitance
dc.subjectliquids
dc.subjectlevel indicators
dc.subjectmeasuring methods
dc.subjectcapacitors
dc.subjectvoltmeters
dc.titleDesign, development and application of a real???time capacitive sensor for automatically measuring liquid level
dc.typeArtigo de peri??dico
dc.coverageI


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