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In INSS2008, we described a new principle for monitoring full-axis (three translational and three rotational) deformation of large and long structures such as bridges, roads, and railways. It is based on a combined use of an optical Laguerre-Gaussian (LG) beam and correlation image sensor (CIS). In this paper, we describe theoretically and examine experimentally several key issues of this technology...
In this paper, we discuss about multi-axis displacement measurement technique with single optical beam and its application for static and full-axis deformation sensing of civil infrastructures such as bridges and railways. Our proposing technique is based on the combined use of an optical vortex (OV) beam and correlation image sensors (CIS). Since the beam profile of OV involves definitive features...
This paper outlines a new research project (CREST) for structure health monitoring. The purpose is to develop a networked sensor for static, full-axis deformation of large and long structures such as bridges, roads, and railways. We propose a novel technique based on the combined use of an optical vortex (OV) beam and correlation image sensors (CIS). Since the beam profile of OV involves definitive...
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