| A simple method to measure phase difference between sinusoidal signals. | |
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MedLine Citation:
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PMID: 21133500 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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In this paper, a novel and simple method to measure the phase difference between two sinusoidal signals is presented. Basically, the method consists of subtracting two sinusoidal signals with same frequencies and measuring the resulting signal amplitude: this amplitude being a minimum whenever there is a coincidence between both signal phases. In order to test this method, an adjustable phase reference signal has been generated using a direct digital synthesizer device. Employing this reference signal, it can be demonstrated that the phase difference between two signals can be evaluated with errors smaller than 0.3° for signals with frequencies up to 1.25 MHz. |
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Authors:
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Fabio Luiz Bertotti; Marcos Santos Hara; Paulo Jose Abatti |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Review of scientific instruments Volume: 81 ISSN: 1089-7623 ISO Abbreviation: Rev Sci Instrum Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-12-07 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405571 Medline TA: Rev Sci Instrum Country: United States |
Other Details:
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Languages: eng Pagination: 115106 Citation Subset: - |
Affiliation:
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Post-graduation Program in Electrical Engineering and Industrial Informatics, Federal University of Technology-Paraná, 3165 Sete de Setembro Av., Curitiba, Paraná 80230-901, Brazil. bertotti@utfpr.edu.br |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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