[CS9-42] Research on axle load measurement on expressway using moire measurement technology
Keywords:Deflection measurement, Sampling moire method, Axle load measurement
A strain sensor has been mainly used as a method of measuring the axial load, but it needs periodical replacement due to deterioration due to long-term use. Therefore, axial load measurement cannot be performed over several weeks from the detection of the defect to the repair. In this presentation, we show the possibility of axial load measurement by image measurement using sampling moiré method for Tokyo Metropolitan Expressway, using a digital camera or video camera and measurement marker of regular pattern. We report that it is possible to measure the axial load of a vehicle by considering the maximum measured deflection during the passage of the vehicle and the passage speed of the vehicle.
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