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Título: DESIGN OF A CONTACLESS VOLTMETER FOR ALTERNATING ELECTRICAL VOLTAGES IN 60 HZ
Autor: ANDRE RIBEIRO GOMES
Colaborador(es): CARLOS ROBERTO HALL BARBOSA - Orientador
Catalogação: 12/NOV/2024 Língua(s): PORTUGUESE - BRAZIL
Tipo: TEXT Subtipo: THESIS
Notas: [pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio.
[en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio.
Referência(s): [pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=68609&idi=1
[en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=68609&idi=2
DOI: https://doi.org/10.17771/PUCRio.acad.68609
Resumo:
The objective of this master s thesis was to develop a voltmeter using the capacitive coupling technique for voltage measurements. The proposed voltmeter design offers a simple and cost-effective alternative to traditional voltage measurement methods. By using capacitive coupling, the need for direct electrical contact between the measuring circuit and the voltage source is eliminated, allowing for non-invasive voltage measurements. The development process involved the design and construction of a capacitive coupling circuit, which enabled the transfer of the voltage signal to a measurement circuit. The measurement circuit included signal conditioning components and an analog-to-digital converter for accurate voltage readings. The system has been calibrated and tested using a known voltage source to ensure reliable and accurate measurements. The experimental results show that the voltmeter obtained satisfactory performance for the usual voltage of 127 V AC and a maximum distance of 0.2 m from the point of interest, maintaining a low level of interference from external electrical noises. The proposed voltmeter design has potential for several applications, especially in scenarios where direct electrical contact with the voltage source is undesirable or impractical. It offers a reliable and efficient solution for voltage measurements, being suitable for both industrial and research purposes.
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