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| Título: | Alterating current sensor using second harmonic detection |
| Autor: | Ferrari, José Perciante, Daniel Dubra, A Arnaud, Alfredo Frins, Erna |
| Tipo: | Artículo |
| Descriptores: | ELECTRÓNICA |
| Fecha de publicación: | 2000 |
| Resumen: | We describe a novel optical sensor based on the Faraday effect for measuring ac. The sensing element is a piece of material of high Verdet constant placed between polarizers. When the angle between the polarizers differs by 45°, a signal of twice the frequency of the ac is generated—in addition to the usual signal with the same frequency as the current. The quotient of these two signals allows a normalized output to be obtained that is proportional to the amplitude of the current. Experimental results demonstrating the practicality of the procedure are presented. |
| Editorial: | Optical Society of America |
| EN: | Applied optics, 2000, v. 39, no. 25 |
| Citación: | Ferrari, José, Perciante, Daniel, Dubra, A., Arnaud, Alfredo, Frins, Erna. Alterating current sensor using second harmonic detection [en línea] Applied optics, 2000, v. 39, no. 25 |
| Departamento académico: | Electrónica |
| Grupo de investigación: | Microelectrónica |
| Aparece en las colecciones: | Publicaciones académicas y científicas - Instituto de Ingeniería Eléctrica |
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