Mindray DC-25, Руководство по обслуживанию

Страница: 61 / 213

Hardware Principle 4-7

The ECG signal, 2D image and color flow image are simultaneously displayed
on the system.

After amplification, filtering and sampling, the ECG signal will be sent to DSP
board and R-wave detection is conducted at the same time.

The detected ECG triggering signal will be sent to the DSP FPGA on the main
board through serial port.
4.2.7 4D Driving Board
M
a
in
b
o
a
rd
P
ro
b
e
C
o
n
n
e
c
te
d
A
s
s
e
m
b
ly
Pr
o
b
e
b
o
a
rd
4D Drive Board
Communication signal
Power
amplication
Voltage
control
Motor driving signal
4D probe Hall return signal
12V
Soc
ke
t c
on
ne
cti
on
4D
probe
So
cke
t c
on
ne
cti
on
Communication &
Control
Power supply
Ultrasonic signal
So
ck
et
co
nn
ec
tio
n
Figure 4-8 Principle Diagram of 4D Drive Board

Amplifies 4D drive signal power and output signal matching the power
requirement to drive the transducer to the desired position;

Provide 4D Hall signal returning channel.