Abstract
This study proposes a load cell that uses an optical fiber Bragg grating to meet the demands for multipoint force measurements. The load cell is based on the shift in the center wavelength of the fiber grating that occurs due to longitudinal strain. The present load cell consists of an octagonal metal frame, two resin arms fixed to the frame and an optical fiber Bragg grating bonded on the arms. Compressive vertical load applied to the frame is transformed to horizontal tensile stress that acts on the fiber grating. The frame and arms have different thermal coefficients in order to compensate for the temperature sensitivity of the fiber grating. This paper first describes the control of the sensitivity and the compensation of the temperature dependence. Second, the undesirable responses to shear and torsional forces are discussed on the basis of applying the finite element method. The performance of a prototype load cell is experimentally demonstrated and the operation principles were confirmed. Copyright © 2005 John Wiley & Sons, Ltd.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
