１　概述随着国家经济水平的提高，机动车数量也日益增多，机动车车速里程表的检测已变得尤为重要，检测手段的科学、实用、完善是提高检测水平的重要条件。目前，国内摩托车车速里程表整车检测装置设备庞大、工作环境要求高、价格昂贵，使得中、小地区计量部门无力开展此项工 1 Overview With the improvement of the national economic level, the number of motor vehicles is also increasing day by day, and the detection of the speedometer of motor vehicles has become particularly important. The scientific, practical and perfect detection means are the important conditions for improving the level of detection. At present, the domestic motorcycle speedometer vehicle detection device equipment is huge, the working environment requires high, expensive, making the measurement department in small and medium-sized area unable to carry out the work