数字读出系统(DRO或VRO)是测量系统中的重要组件。测量系统的精度主要由传感器或码尺决定,因此,传感器或码尺是测量系统中的关键器件。码尺一般安装于机床不显著的部位(有时是以密封方式安装的)。在加工过程中,码尺和读数部件起着监视系统的作用。本文着重介绍美国AcuRite公司的光栅制造工艺。一、码尺的类别码尺能把位移量转换为电信号。现有码尺的种类 Digital readout system (DRO or VRO) is an important component of the measurement system. The accuracy of the measurement system is mainly determined by the sensor or yardstick, so the sensor or yardstick is the key component in the measurement system. Yardstick generally installed in the machine is not significant parts (sometimes in a sealed manner). The yardstick and reading unit serve as a monitoring system during processing. This article focuses on the grating manufacturing process at AcuRite in the United States. First, the type of yardstick code yard can shift the amount of electrical signals. The type of existing yardstick