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Wielopunktowe amplitudowe czujniki światłowodowe

Kusznier J.

Prace Naukowe Politechniki Śląskiej. Elektryka

2011

z. 3

83--95

W artykule przedstawiono budowę oraz wyniki pomiarów sieci czujników światłowodowych do pomiaru nacisku, poziomu cieczy oraz temperatury. Głowice pomiarowe zastosowanych czujników wykorzystują zjawiska: naruszenia odbicia oraz strat zgięciowych.

This article presents the construction and measurement results for networks of fibre sensors used to measure pressure, liquid level and temperature. The measurement heads in the applied sensors take advantage of the following phenomena: disturbance in the reflection and bending loss.

Application of polarisation-maintaining side-hole fibres do direct force measurement

Wierzba P., Kosmowski B.

Opto-Electronics Review

2003

Vol. 11, No. 4

305-311

The use of single mode polarisation-maintaining side-hole (SMPM-SH) fibres for direct measurement of transverse force has been studied theoretically and experimentally. Based on the results of a qualitative analysis of stress distribution in such a fibre, it was predicted that SMPM-SH fibres can exhibit higher sensitivity to transverse force than a standard SMPM fibre. The modelling of two types of SMPM-SH fibres with bow-tie and round holes was conducted using finite element method and modifield coupled-mode method. It showed that while there is a marked increase of the sensitivity for the SMPM-SH fibre with bow-tie holes, the sensitivity of the SMPM-SH fibre with round holes can be even lower than that of a standard SMPM fibre. Subsequently, in an experiment, which to the authors' knowledge is the first application of SMPM-SH fibres to direct transverse force measurement, the sensitivity of an SMPM-SH fibre with bow-tie holes was measured. Measurement results agreed well with theoretical predictions. However, more systematic research is needed to determine the realisationship between the sensitivity, dimensions and geometry of the holes.