Study on intensity modulated POF vibration sensors

Kishore Putha; D. Dantala; M. Padmavanthi

doi:10.1117/12.2542207

16 October 2019 Study on intensity modulated POF vibration sensors

Kishore Putha, D. Dantala, M. Padmavanthi

Proceedings Volume 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019); 112050W (2019) https://doi.org/10.1117/12.2542207
Event: Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 2019, Phuket, Thailand

Abstract

In this paper, a comparison study on the all fiber optic non-contact vibration sensors which are designed based on the principle of reflected light intensity modulation is reported. Various structural designs were proposed to enable advancement in the sensing of the vibration. For every configuration, achieved an improvement by eliminating the dark region, exhibits single slope which enables easy alignment and the rational output method used to eliminate the effect of light source on sensing. The comparison between dual plastic optical fiber, fiber optic fused 1x2 coupler and fiber optic fused 2x2 coupler vibration sensors have been discussed in detail with respect to the vibration measurement. The results reveal that, among all the reported vibration sensors 2x2 fiber optic coupler sensor exhibits better response in all the aspects. It has high resolution of 0.03 µm and frequency range up to 3.5 kHz.

Citation Download Citation

Kishore Putha, D. Dantala, and M. Padmavanthi "Study on intensity modulated POF vibration sensors", Proc. SPIE 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 112050W (16 October 2019); https://doi.org/10.1117/12.2542207

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KEYWORDS

Sensors

Fiber optics sensors

Fiber optics

Modulation

Polymer optical fibers

Light emitting diodes

Fiber optics tests

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