Chen Yongqiang, Yan Binbin, Zhang Jun
EDAN Instruments, Inc., Shenzhen, 518122.
Shanghai Institute of Medical Device Testing, Shanghai, 201318.
Zhongguo Yi Liao Qi Xie Za Zhi. 2024 Jul 30;48(4):440-444. doi: 10.12455/j.issn.1671-7104.230697.
To comprehensively meet the test requirements for the common mode rejection ratio (CMRR) across different ECG-particular standards, this paper presents the design of an ECG CMRR automatic test system. The hardware component primarily consists of a test signal generation module, an automatic control network (which includes a resistance-capacitance network control module and a polarization voltage control module), and a noise level switching module. The software portion enables automatic control and user interaction. Experimental results indicate that the system is stable, reliable, and highly automated, capable of satisfying the test requirements of various ECG-particular standards, thus demonstrating a promising application prospect.
为全面满足不同心电图特定标准下的共模抑制比（CMRR）测试要求，本文提出了一种心电图CMRR自动测试系统的设计。硬件部分主要由测试信号生成模块、自动控制网络（包括电阻电容网络控制模块和极化电压控制模块）以及噪声电平切换模块组成。软件部分实现自动控制和用户交互。实验结果表明，该系统稳定、可靠且自动化程度高，能够满足各种心电图特定标准的测试要求，具有良好的应用前景。
