EWOFS 2010

Fiber optic intensity sensor referenced with virtual instrumentation for measuring displacement

A. J. G. Fernandes, C. Jesus, University of Madeira (Portugal); P. A. S. Jorge, INESC Porto - Institute for Systems and Computers Engineering of Porto (Portugal); J. M. Baptista, University of Madeira (Portugal)

In this work it is presented a system to control a self-referencing fiber optic intensity displacement sensor using virtual instrumentation. 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.

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