Rexroth力士乐VT-MVTW-1-16/D供应伺服驱动模块

Rexroth力士乐VT-MVTW-1-16/D供应伺服驱动模块

Rexroth力士乐VT-MVTW-1-16/D供应伺服驱动模块

产品描述

数字闭环控制方案将开环检测误差信号作为反馈信号，使系统总是工作在线性度很高，斜率大的零位点上，从而提供了很高的灵敏度和更大的动态范围。

同时采用数字化的信号处理方法，大大消除了采用模拟电路而带来的电路噪声而且很好的解决了模拟相位斜波斜波反馈的回扫时间问题。

数字闭环控制部分的主要功能是对干涉信号进行采样与A/D转换，数字解调，生成数字阶梯波反馈和方波调制信号，D/A转换，通过集成光学器件进

行相位调制。

数字闭环控制结构是在模拟相位斜波反馈的基础上加以数字化的改进而产生的。它采用方波作为相位偏置调制信号，以数字的阶梯波代替模拟相位斜波作为闭环反馈控制量，产生-个非互易相位移信号，来抵消有转动而产生的Sagnac相位移从而使闭环控制系统达到动态平衡。

Rexroth力士乐VT-MVTW-1-16/D供应伺服驱动模块

Product description

The digital closed loop control scheme takes the open loop detection error signal as the feedback signal, so that the system always works at the zero point with high linearity and large slope, thus providing high sensitivity and larger dynamic range.

At the same time, the digital signal processing method is adopted, which greatly eliminates the circuit noise caused by the analog circuit and solves the problem of the retrace time of the analog phase skew feedback.

The main function of the digital closed loop control part is to sample the interference signal and A/D conversion, digital demodulation, generate digital step wave feedback and square wave modulation signals, D/A conversion, and feed through integrated optics

Line phase modulation.

The digital closed-loop control structure is produced by digital improvement on the basis of analog phase oblique feedback. It uses square wave as phase bias modulation signal and digital step wave instead of analog phase oblique wave as closed-loop feedback control quantity to generate a non-reciprocal phase shift signal to offset Sagnac phase shift caused by rotation so that the closed-loop control system can achieve dynamic balance.