Title :
Fiber-optic measurement of low hydrostatic pressure based on deformations induced in twisted nematic liquid crystal cells
Author :
T.R. Wolinski;A. Bogumil;W.J. Bock
Author_Institution :
Inst. of Phys., Warsaw Univ. of Technol., Poland
Abstract :
Development of a new fiber-optic method of hydrostatic pressure measurement based on pressure-induced deformations in twisted nematic liquid crystal cells is presented. The method, particularly suitable for pressures up to 2 MPa and utilizing strong rotatory power occurring in chiral nematic liquid crystals, offers high response to pressure with reduced temperature sensitivity.
Keywords :
"Pressure measurement","Liquid crystals","Optical fiber polarization","Optical fibers","Temperature sensors","Birefringence","Optical sensors","Optical propagation","Azimuth","Metrology"
Journal_Title :
IEEE Transactions on Instrumentation and Measurement
