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Time-frequency analysis of multiple fringe and nonsinusoidal signals.(RESEARCH AND DEVELOPMENT)

Fiber Optic Sensors and Systems, June, 2006

Tarun Kumar Gangopadhyay, Student Member, IEEE, Sivaji Chakravorti, Senior Member, IEEE, Saibal Chatterjee, and Kesab Khattacharya, Senior Member, IEEE

A notable branch of rapidly developing photonics technology is the application of the Interferometric sensor using an optical fiber. These sensors have proved to be more sensitive than their electrical counterparts by several orders of magnitude.

For automatic monitoring of extended surfaces in real time without contact or perturbation, Fabry-Perot interferometric (FPI) schemes in fiber optics are being established as versatile tools for fast and sensitive vibration analysis, which can also be combined with fiber-optic signal transmission for rugged performance in harsh engineering environments. ...

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