A.Uu diem cua dong co buoc: 1.gia thanh re 2.co the dieu khien mach ho 3.duy tri mo men rat tot 4.mo men soan cao o toc do thap 5.chi phi bao duong thap 6.dinh vi chinh xac 7.khong phai dieu chinh cac thong so dieu khien

B.Nhuoc diem:1.dong co lam viec khong deu, dac biet o toc do thap 2.tieu thu dong dien khong phu thuoc vao tai 3.kich co han che 4.lam viec on 5.mo men giam theo toc do 6.khong co phan hoi nen say ra sai so.

C.Dong co SV co mach dieu khien kin, do do phai co he thong phan hoi de phan biet cac thong so ve toc do, vi tri,,, co nhieu phuong phap dieu khien vong kin, trong do phuong phap PID su dung rong rai.

Uu diem dcSV: 1.Mo men truc deu hon 2.Toc do cao hon 3.mach dieu khien toc do chinh xac va deu hon 3.co nhieu kich co hon 4.lam viec em hon 5.do chinh xac cao hon.

Nhuoc diem: 1.chi phi lon hon 2.khong lam viec o che do mach dieu khien ho, phai co he thong phan hoi 3.Yeu cau phai dieu chinh cac thong so o vong dieu khien 4.bao duong ton kem hon