kHhdm}
TRU'CSNG DH SU' PHAM KY THUAT TPHCM
KHOA DAO TAO CHAT Llf(?NG CAO
BO MON CO DIEN TU”
DE THI CUOI HOC ICY I NAM HOC 23-24
Mon: HE THONG TRUYEN DQNG SERVO
Ma mon hoc: SERV334029
De so/Ma de: 01 De thi co 6 trang.
Thai gian: 75 phut.
Dupe phep su dung tai lieu.
SV lam bai true tiep tren de thi va nop lai de
Chu ky giam thi 1 Chu ky giam thi 2
Diem va chir ky
CB cham thi thu nhat CB cham thi thu hai
Ho va ten:
..................................................................
Ma so SV :
..................................................................
So TT:
.......................
Phong thi:
..............................
■ i> ■ :' ■ ■
Phan 1 (Trac nghiem 5 diem)
Cau 1 (0.5d). Choose the correct statement:
A. A current feedback signal is used to stabilize torque of a servo motor.
B. Torque saturation is a drawback of controlling a servo system
C. High speed opto couplers are used to isolate pulse signals in a servo system
D. All true
Cau 2 (0.5d). Cho d$ng ca buac PM chay a ch6 d0 vi buac vbi he so chia buac N = 20. Tinh xung
PWM a buac dau tien
..............................
?
Cau 3 (0.5d). Cau khang djnh nao sau day la DUNG:
A. Noi suy SA khong chay noi suy duang thang
B. Noi suy DS cho ket qua chinh xac han noi suy SA vi cho phep chay true X vaY
dong thai.
C. Noi suy lay mlu (sampled-data) cho ket qua chinh xac han cac phuang phap noi
suy xung chuan (reference pulses)
D. Tat ca deu SAI
Cau 4 (0.5d). Cho dong ca buac co cau tap va sa do kich nhu hinh
_____________
/ | 1a0
------
1
ibe
-------
n n m s ''— »2b
|
Index 1a 1b 2a 2t>
1 + - - -
2- - -
3-- ♦ -
A- - *
5- - -
6- - -
7- - >-
8---«
Cau tra lai nao sau day la DUNG
A. Dong ca buac loai PM dang hoat dong che do vi buac (microstep) vai N = 8.
B. Sue dung mach cong suat la mach cau H cho moi pha de dieu khien dong ca hoat
dong theo sa do kich.
C. Goc buac ciia dong ca bang 30 do va dang hoat dong theo che do half-step
D. B va C
S6 hieu: BM3/QT-PDT-RDTV/02 Lin soat xet: 02 Ngay hieu luc: 15/5/2020 Trang: 1/5
