Abstract
AbstractThis paper proposes an innovative smartphone‐based strain sensing method (named MaxCpture) for measuring maximum peak tensile and compressive strains. The MaxCpture method is able to record the maximum peak strain of a structure without continuous power supply and real‐time monitoring. This method combines the maximum peak strain sensor, a smartphone, and the microimage sensing algorithm. Crucially, the novel clamping sensitive mechanism in the sensor preserves information about the maximum deformation of the structure. To validate the feasibility of the MaxCpture method, this study conducted a series of experiments, including static tests, the beam of constant strength tests, and dynamic tests. The results show that the MaxCpture method is able to measure the maximum peak tensile and compressive strain effectively. With its convenient acquisition, low cost, and multi‐user collaboration, the MaxCpture method provides a promising approach for seismic response detection of various engineering structures.
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