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本文提出了一种使用激光测量路面平整度的方法，测量精度可达０．２ｍｍ，测量范围为±１７０ｍｍ，设计速度为１４４ｋｍ／ｈ。在实验室条件下对此测量方法的线性作了试验。
In this paper, a method of laser surface roughness measurement is proposed. The measurement accuracy is up to 0.2mm, the measurement range is ± 170mm and the design speed is 144km / h. The linearity of this measurement was tested under laboratory conditions.