Revision:1.0(2023-01-12)
61
The ECG module is designed for monitoring ECG signals and displaying ECG waveforms, which
serve as reference of ultrasound images and keep synchronous with 2D images and color flow
images displayed in real time. After being amplified, filtered, and sampled, the ECG signal is sent
to the DSC module through the UART serial port. In the meantime, R-wave detection is
performed, and the detected ECG triggering signal is actively sent to the system controller to start
scan transmission.
Specific indicators are as follows:
• Three leads are supported: RA, LA, and LL electrodes are valid.
• Lead identification is not supported.
• Only one channel is supported.
• It supports AC overload protection at 50 Hz/60 Hz, 1 Vp-p, lasting for 10s. After the overload
signal disappears, the module is restored to normal within 3s.
• It supports disconnection test for all limb leads and the RL lead in 3-lead mode.
• The QRS amplitude of minimum heart rate detection is 0.2 mV.
• Input impedance is greater than 5 MΩ (10 Hz signal).
• The ECG signal input range is ±8 mV.
Diagnostic Ultrasound System
Service Manual
2 Product Knowledge
To Next Page
Loading...
Need help?
General
