1测量过程控制的重要性1．1铁路测量的现状铁路目前应用的是传统的计量检定和测量方法，对生产过程的控制起了一定的保证作用。但计量标准器和工作计量器具在合格使用周期内准确度可能已超出极限，对测量值的准确度难以十分置信。随着列车提速、重载以及生产过程自动控制的发展 1 The Importance of Measurement Process Control 1.1 Status of Railway Measurement The railway currently uses the traditional metrological verification and measurement methods and plays a certain role in the control of the production process. However, the accuracy of the measuring standard and the working measuring instrument may have exceeded the limit during the qualifying period of use, and the accuracy of the measured values ​​is difficult to be fully believed. With the train speed, heavy load and automatic control of the development of the production process