基于DSP的数字化转台伺服系统数字测速的实现  

Realization of Digital Speed Measurement Based on DSP for Gimbal Servo System

作　　者：赵岩[1] 翟百臣[2] 陈涛[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130022 [2]北京控制工程研究所,北京100080

出　　处：《测试技术学报》2006年第5期429-434,共6页Journal of Test and Measurement Technology

基　　金："十五"预研项目资助(41101050203)

摘　　要：在分析了数字测速方法的原理之后,根据转台伺服系统速度检测方法的现状及DSP更适合数字化测速的特点,用DSP对目前广泛运用于转台伺服系统中的数字测速方法位置差分法(即M法)进行了实际应用,并给出了具体的软、硬件实现方法.实践证明,由于DSP自身硬件的特点,使得该方法在不改变原有转台伺服系统硬件设备的基础上,即可完成速度测量,且与原有测速方法相比,测速精度提高了4倍.该方法简单、方便,非常适用于那些需要高精度速度检测及位置闭环的场合.The principles of digital speed measurement is described first, and then according to the actuality of the gimbal servo system and the characters of DSP, the method of position difference based on DSP is applied to the servo system. The practical results prove that the method can fulfill speed measurement without changing the intrinsic hardware of servo system. Compared with the traditional measurement methods, the measurement precision can be improved four times. The method is very fit for some occasions that need high speed measurement precision or high position-closed precision. K

关 键 词：伺服系统 DSP 数字测速 位置差分法 测速精度 

分 类 号：TH921.541[机械工程]