光控伺服系统建立建模与仿真.PDFVIP

29 2 　　　　 Vo . 29 No . 2 2007 4 PI EZO EL ECT ECT RICS ACO U ST OO P T ICS A pr. 2007 　　:1004-2474(2007)02-021-3 0 3 、 李　琼, 王少萍, 梁　磊 ( , 100083) 　　　:, , ———(PLZ T )。 , , P LZ T 。, 。 :;;(P LZ T);; :V 24 1　　　:A The Structure, Modeling and Simulation of Optical Drive Servo System LI Qiong, WANG Shao-ping, LIANG Lei (D ept . of M echat roni cs, S choo of A SEE, A eronauti cs and A s t ronaut ics of Beijing U niversit y, Beiji ng 100083, China) 　　A stract:T he optica contro servo sy stem, w hich is immune to e ectromag netic interf erence and speedy fo r in- fo rmation transmission, is intro duced in this artic e. T he pho tostrictive ma teria P LZ T ceramics and it s practica structur e for the o ptica-driv e device used in the optica serv o va ve a s an im po rtant par t a re i umina ted he re. A t ast, thr ough the mode ing and simu ation of the w ho e optica sy stem, no t on y the immune abi ity to e ectro mag- netic interf e rence is discu ssed here, but a so the effec t to the accuracy of the optica drive P LZ T device by diff erent co ntro methods is co mpar ed, a of w hich is in o rder to probe into the practicabi ity and remained questio ns o f this sy stem and the optica ———drive dev ice. Key words:o ptica serv o sy stem;optica drive;PLZ T bimo rph cer amics;mode ing;simu a tion 　 　　、 、、、、 , 、。 ,、, , 。 , (F BL ) 。 [1] 。, 。, [2] , 。 , ,。 1　光控伺服系统的建立 1　 , :P LZ T 。 , 、, ,, , 。- , C1 、 , C2 ; , (P LZ T )。 P LZ T