A simple load sensor based on a bent single-mode-multimode-single-mode fiber structure
Document Type
Article
Publication Date
1-1-2016
Abstract
A load sensor is demonstrated using a single-mode-multimode-single-mode (SMS) fiber structure, which is sandwiched between two CR-39 plastic polymer plates. A larger effective transverse strain can be achieved when the distance, D2, between the stage and the edge of the multimode fiber is larger. A higher sensitivity is obtained when D2 = 7 cm with a value of −0.0102 nm/mN, as compared to −0.0027 nm/mN when D2 = 3 cm. In contrast, an FBG integrated in a similar manner has shown an indiscernible change in the wavelength shift as compared to that produced by the SMS device. The result indicates that the proposed SMS device is suitable for sensing a small load or transverse strain with a reasonably high sensitivity.
Keywords
Interferometer, Load sensor, Fiber-optic sensor
Divisions
fac_eng
Funders
Ministry of Higher Education under High Impact Research Grant Scheme (Grant No: UM.C/625/1/HIR/MOHE/ENG/61)
Publication Title
Sensors and Actuators A: Physical
Volume
242
Publisher
Elsevier