High-sensitivity pressure sensor using a shielded polymer-coated fiber Bragg grating

Authors
Zhang, Y Feng, DJ Liu, ZG Guo, ZY Dong, XY Chiang, KS Chu, BCB
Citation
Y. Zhang et al., High-sensitivity pressure sensor using a shielded polymer-coated fiber Bragg grating, IEEE PHOTON, 13(6), 2001, pp. 618-619
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
10411135 → ACNP
Volume
13
Issue
6
Year of publication
2001
Pages
618 - 619
Database
ISI
SICI code
1041-1135(200106)13:6<618:HPSUAS>2.0.ZU;2-G
Abstract
We demonstrate a novel high-sensitivity pressure sensor, which is based on the use of a fiber Bragg grating (FBG) embedded in a polymer-filled metal c ylinder with an opening on one side to enhance the pressure sensitivity. Th e measured pressure sensitivity of the fractional change in the Bragg wavel ength of our experimental sensor is -3.41 x 10(-3) MPa-1, which is approxim ately 1720 times higher than that can be achieved with a bare FBG, The line arity of our sensor is also good. This sensor should find applications in t he area of low-pressure measurement.