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| Title: | Current sensor utilizing heterodyne detection |
| Authors: | Ferrari, José A Dubra, Alfredo Arnaud, Alfredo Perciante, Daniel |
| Type: | Artículo |
| Descriptors: | ELECTRÓNICA |
| Issue Date: | 1999 |
| Abstract: | Based on the Faraday effect for measuring ac current, we describe a fiber-optic sensor that uses laser-diode intensity modulation to perform heterodyne signal detection. The sensor output at the carrier frequency is used as a reference signal to normalize the results. The sensing element consists of a few coils low-birefringence fibers between polarizers. We built the current sensor described above and tested its performance—sensitivity and noise—as functions of the angle between polarizers. |
| Publisher: | Optical Society of America |
| IN: | Applied Optics, 1999, v. 38, no. 13 |
| Citation: | Ferrari, José A., Dubra, Alfredo, Arnaud, Alfredo, Perciante, Daniel. Current sensor utilizing heterodyne detection [en línea] Applied Optics, 1999, v. 38, no. 13 |
| Academic department: | Electrónica Electrónica |
| Investigation group: | Electrónica Aplicada Microelectrónica |
| Appears in Collections: | Publicaciones académicas y científicas - Instituto de Ingeniería Eléctrica |
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