Materials, Photonic Devices, and Sensors

Research of three-dimensional force sensor based on multiplexed fiber Bragg grating strain sensors

[+] Author Affiliations
Hui-Chao Xu

BeiHang University, School of Mechanical Engineering and Automation, Beijing, China

Su Wang

BeiHang University, School of Mechanical Engineering and Automation, Beijing, China

Beijing University of Civil Engineering and Architecture, Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing, China

Xin-Gang Miao

Beijing University of Civil Engineering and Architecture, Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing, China

Opt. Eng. 56(4), 047103 (Apr 13, 2017). doi:10.1117/1.OE.56.4.047103
History: Received November 15, 2016; Accepted March 29, 2017
Text Size: A A A

Abstract.  Most safety problems of architectural structures are caused by structural deformation, and the structures usually deform in more than one direction. So it is important and necessary to collect the safety monitoring data from all directions. Conventional fiber Bragg grating (FBG) sensors cannot fully meet the requirements of a modern safety monitoring system in practical application. Therefore, the research of a three-dimensional (3-D) force sensor that can expand the application range of fiber optic sensing technology is necessary and significant. A 3-D force sensor based on multiplexed FBG strain sensors is proposed, which can be used to measure 3-D force on a structure under test, force distribution, and the trend of relative microdeformation. The sensor that has an integral structure with a design has been described in detail, and its sensing principle has been investigated. The results of calibration experiments show that it can accurately and effectively realize the 3-D force measurement with good linearity, repeatability, and consistency. Experimental and analytical results both demonstrate its feasibility. It can work in harsh environments due to its good stability and anti-interference ability. The sensor proposed in this paper has great engineering application value and application prospects in the field of structure health monitoring.

Figures in this Article
© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Hui-Chao Xu ; Su Wang and Xin-Gang Miao
"Research of three-dimensional force sensor based on multiplexed fiber Bragg grating strain sensors", Opt. Eng. 56(4), 047103 (Apr 13, 2017). ; http://dx.doi.org/10.1117/1.OE.56.4.047103


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.