Based on Fiber-Optic Sensor and the Light Intensity Changes Vehicle Dynamic Weighing System

This paper mainly discusses the structures in the laboratory of a fiber-optic WIM system. This system is based on the feature of the fiber that when it vertically pressed by heavy objects the light intensity of the fiber change with them. This experiment use CCD camera, splitter and other professional optical equipment to capture the light intensity changes video. And then, use computer to obtain the image from the video stream, grayscale process, binary process, corrosion process and expansion process the image to calculate the light intensity. The experimental results reflect some regular relationship of the experimental vehicle weight and the intensity of the fiber and speed of the vehicle.