基于DSP的实时负反馈稳定平台系统  

Real-time Negative Feedback Stabilization Platform System Based on DSP

作　　者：汤健华 李静[1] 

机构地区：[1]中国科学技术大学精密机械与精密仪器系

出　　处：《工业控制计算机》2019年第10期54-55,共2页Industrial Control Computer

摘　　要：基于DSP搭建了一套实时负反馈稳定平台系统,它包括位移检测光路、基于DSP的数据采集与处理部分、对压电陶瓷平台负反馈控制以及控制软件。系统充分利用DSP(Digital Signal Processing)快速计算能力处理数据,简化了硬件电路。通过对系统标定,得到了工作平台位移量与测得的位移量之间的线性关系,以及标准偏差0.466μm、响应时间16ms。该系统可以实时跟踪、稳定工作平台的波动,满足显微成像的要求。This paper builds a real-time negative feedback stable platform system based on DSP,which includes displacement detection optical path,DSP-based data acquisition and processing part,negative feedback control of piezoelectric stage and control software.The system makes full use of fast computing capability of Digital Signal Processing(DSP)to process data,which simplifies the hardware circuit.By calibrating the system,the linear relationship between the displacement of the working platform and the measured displacement is obtained,and the standard deviation is 0.466μm and the response time is 16ms.The system can track and stabilize the fluctuation of the working platform in real time,which meets the requirements of microscopic imaging.

关 键 词：DSP处理 实时 负反馈 

分 类 号：R28[医药卫生—中药学]