Fiber optic intensity sensor referenced with a virtual delay line |
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Authors: | A.J.G. Fernandes P.A.S. Jorge |
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Affiliation: | a Centro de Ciências Exactas e da Engenharia, Universidade da Madeira, 9300-390 Funchal, Portugalb INESC Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal |
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Abstract: | In this work a self-referencing fiber optic intensity sensor using virtual instrumentation is presented. To ensure higher flexibility and dynamic optimization, the use of an optical fiber delay line or an electrical delay line is avoided by implementing a delay line in the virtual domain, preserving the self-referencing and sensitivity characteristics of the proposed optical intensity sensing structure. Results are presented where displacement is measured with an 18 μm resolution demonstrating the concept feasibility. |
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Keywords: | Fiber optic intensity sensor Virtual delay line Virtual instrumentation |
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