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28 June 2002 Development of a high-speed texture measurement system
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A high-speed measurement system has been successfully developed to measure the pavement surface texture. This device is based on the laser triangulation measurement using a position sensitive device (PSD) as detector. In this paper we will discuss the basic design and implementation of the system. This system has a sampling rate of 175kHz, which greatly increases the ability of texture profiling and provides more quantitative information for the pavement measurement. The proper accuracy of dynamic measurement (0.02mm) guarantees correct detection in the particular applications on the pavement surface quality inspection. The flexible-hardware design enhances the system's performance under various practical situations, especially the high-response frequency, which makes the system control more prompt in handling the suddenly changed slopes and colors. The resolution in both static and dynamic measurement, the temperature shifting, the noise level, and the good repeatability indicates that the system has a good functionality at a very low cost. The experiment results illustrate that the system not only facilitates the high-speed macro/micro texture profiling, but also provides great potential to the wide industrial applications that need fast measurement.
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Yong Rao, Xuhan Jiang, Xuemin Chen, and C. Richard Liu "Development of a high-speed texture measurement system", Proc. SPIE 4696, Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways, (28 June 2002);

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