Phase-modulated fiber optic acoustic sensors

Lagakos, N.; Bucaro, J. A.

doi:10.1016/0019-0578(89)90033-5

Cited by 5 publications

(2 citation statements)

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“…Following a similar procedure, Lagakos and co-authors demonstrated analytically that, by properly choosing the glass and coating materials, and the corresponding thicknesses, it is possible to have optical fibers with reduced pressure sensitivity [28], or even insensitive to the pressure field [29,30]. They also analyzed the pressure sensitivity 145 of an optical fiber with an inner coating of silicone as a function of the external outer coating and for different frequencies [31,32,17]. At low frequency (< 1 kHz), they confirmed that both the axial and radial strains contribute to the fiber's sensitivity, with the most substantial contri-150 bution coming from the axial strain.…”

Section: δφmentioning

confidence: 99%

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Distributed optical fiber pressure sensors

Schenato

Galtarossa

Pasuto

et al. 2020

Optical Fiber Technology

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The measurement of pressure by using distributed optical fiber sensors has represented a challenge for many years. While single-point optical fiber pressure sensors have reached a solid level of technology maturity, showing to be very good candidates in replacing conventional electrical sensors due to their numerous advantages, distributed sensors are still a matter of an intense research activity aimed at determining the most proper and robust pressure-sensitivity enhancement mechanism. This paper reviews early and recent works on distributed pressure sensors, classifying the sensors according to the sensing mechanism. For each type of mechanism, the issues and potentials are analyzed and discussed.

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Section: δφmentioning

confidence: 99%

“…The response of an optical fiber to a pressure field 50 can be divide into three different regimes depending on the frequency of the applied pressure [17], as shown in Fig. 1.…”

Section: Guide To the Readingmentioning

confidence: 99%