Title :
New nonlinear phase transduction method for DC measurand interferometric fibre sensors
Author :
Kersey, A. ; Bucholtz, F. ; Dandridge, A.
Author_Institution :
Naval Research Laboratory, Washington, USA
Abstract :
A new approach to the measurement of displacement using optical fibre interferometry is described. The technique is based on a geometrical arrangement in which linear displacement is transposed nonlinearly into axial fibre strain. The technique can be used in the development of true DC sensors for the displacement, acceleration, pressure and other variables. A displacement sensitivity of ¿4 Å is demonstrated.
Keywords :
displacement measurement; fibre optic sensors; light interferometry; DC measured interferometric fibre sensors; DC sensors; acceleration measurement; axial fibre strain; displacement measurement; displacement sensitivity; geometrical arrangement; nonlinear phase transduction method; pressure measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860051
