Electronic speckle pattern interferometry compensated for environmentally induced phase noise

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 1990

Autores

Newson Trevor, P (Autor) Outra; Santos Jose, L (Autor) FCUP; Jackson David, A (Autor) Outra

Ata de Conferência Internacional

Título: Proceedings of SPIE - The International Society for Optical Engineering

Páginas: 173-179

Fiber Optic Sensors IV

Hague, Neth, 13 March 1990 through 14 March 1990

Indexação

ISI Web of Knowledge

Scopus - 4 Citações

Outras Informações

ID Authenticus: P-007-559

Abstract (EN): A system employing optical fibres for electronic speckle pattern interferometry is demonstrated. Single mode optical fibres are used to provide a reference beam and illumination of the object. The Michelson interferometer formed by the reference fibre and the fibre illuminating the target is used to compensate for environmentally induced phase noise. This compensation is achieved by using an electronic servo and a piezoelectric phase modulator to lock the Michelson at its quadrature point.

Idioma: Inglês

Tipo (Avaliação Docente): Científica