&lt;title&gt;Structural deformation monitoring with GPS: operational issues&lt;/title&gt;

Duff, Keith; Hyzak, Michael D; Tucker, David M.

doi:10.1117/12.300113

Cited by 1 publication

(1 citation statement)

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“…The sensors may be strain gage, vibrating wire, piezoelectric (Park et al, 2003;Zhang and Zhang, 2005), fiber optic sensor (Inaudi 2003;Murayama et al, 2003) and so on; . Displacement monitoring: To estimate the structural state by monitoring the position change of some points in the structures using GPS (global positioning system) (Duff et al, 1998), laser, camera, or fiber optic sensor; . Acceleration monitoring: To monitor the structural state using accelerometer (Wong et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Sensitive Skin and the Relative Sensing System for Real-time Surface Monitoring of Crack in Civil Infrastructure

Zhang

Zhou

Zhang

et al. 2006

Journal of Intelligent Material Systems and Structures

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It is difficult for the existing point monitoring methods to find the initial crack on the civil infrastructure. In this article, by adopting the area monitoring method, the sensitive skin and the relative sensing system is proposed, which has the ability to real-time monitor the initial crack on the surface of civil infrastructure. The system is composed of three main parts: sensitive skin, secondary processor, and terminal processor. The concrete specimen experiments show that the system can monitor the structural surface crack with the width down to 0.02 mm and reflect the shape and length of the crack effectively. Because the whole circuit is digital and the most consumed sensitive skin is inexpensive, the system may have excellent performance in cost, accuracy, and sensitivity.

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