车速里程表由车速表和里程表构成。汽车在行驶中,驾驶员一般通过主观估计和参照车速表来控制车速。目前,绝大多数汽车检测站都装有汽车车速检验台,将车速表的检测作为必检项目。目前,我站除对车辆上线检测车速表外,还与计量部门配合对车速里程表进行计量检定。车速表上线检测,广大车主已认识并适应,但对车速表的计量检定,尚有人不理解,认为 Speedometer consists of a speedometer and odometer. When driving a car, the driver generally controls the speed of the car through subjective evaluation and reference to the speedometer. Currently, the vast majority of car inspection stations are equipped with car speed test stand, the speedometer test as a seized item. At present, apart from testing the on-line speedometer of the vehicle, I also coordinate with the metrology department to measure the speedometer. Speedometer on-line testing, the majority of owners have recognized and adapted, but the speedometer measurement verification, there are still people do not understand that