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Indexed by:期刊论文

Date of Publication:2018-06-01

Journal:IEEE SENSORS JOURNAL

Included Journals:SCIE

Volume:18

Issue:11

Page Number:4664-4672

ISSN No.:1530-437X

Key Words:Camera; displacement; digital image correlation; sensing; smartphone; structural health monitoring

Abstract:Smartphones, which houses various onboard sensors and a camera, can be leveraged for structural health monitoring. In this paper, an iPhone's camera coupled with a custom iOS app, D-Viewer, is employed for 3-D structural displacement monitoring. Based on the digital image correlation technique, the camera is used to track a circular target, and the app determines its in-plane, out-of-plane, and arbitrary direction displacements within the field of view. A series of static and dynamic experiments is conducted to validate the proposed technique.