Fiber optic liquid crystal devices for pressure sensing

Tomasz R. Wolinski; Tomasz Nasilowski; Waldemar K. Bajdecki; Andrzej W. Domanski; Miroslaw A. Karpierz; Marek Wojciech Sierakowski; Agnieszka Szymanska; Jan Wojcik

doi:10.1117/12.318213

13 August 1998 Fiber optic liquid crystal devices for pressure sensing

Tomasz R. Wolinski, Tomasz Nasilowski, Waldemar K. Bajdecki, Andrzej W. Domanski, Miroslaw A. Karpierz, Marek Wojciech Sierakowski, Agnieszka Szymanska, Jan Wojcik

Author Affiliations +

Proceedings Volume 3555, Optical and Fiber Optic Sensor Systems; (1998) https://doi.org/10.1117/12.318213
Event: Photonics China '98, 1998, Beijing, China

Abstract

An original idea of hydrostatic pressure monitoring is presented. The paper reports latest result of liquid crystal-based fiber optic devices for hydrostatic pressure sensing in both low pressure and high pressure regions. In the low-pressure region, the fiber optic transducer based on properties of colorimetry employs pressure-induced deformations occurring in liquid crystalline cells, configured in a homogenous Frederiks geometry. However, in the high pressure region we propose another approach based on a liquid crystal-core anisotropic fiber acting as a sensing medium due to pressure-induced changes in its birefringence. These fibers unite the unique advantages of liquid crystals and quality of fiber technology that can be used for instant pressure monitoring.

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Tomasz R. Wolinski, Tomasz Nasilowski, Waldemar K. Bajdecki, Andrzej W. Domanski, Miroslaw A. Karpierz, Marek Wojciech Sierakowski, Agnieszka Szymanska, and Jan Wojcik "Fiber optic liquid crystal devices for pressure sensing", Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); https://doi.org/10.1117/12.318213

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