低成本生物电阻抗测量模拟前端AFE4300及其应用

Low Cost Bioelectrical Impedance Measurement Analog Front End AFE4300 and its Application

生物电阻抗分析人体健康信息检测方面具有重要的应用价值。利用单芯片模拟前端AFE4300设计了一款人体生物电阻抗检测单元,并利用人体阻抗模拟网络对该检测单元进行了验证。验证结果表明,该系统幅值相对误差不超过1.5%,相位角最大误差不超过0.8°,该检测单元硬件结构简单,可用于低成本、小型化生物电阻抗相关健康检测产品开发。

Bioelectrical impedance measurement have an important application value in human health informationdetection. A human body bioelectrical impedance detection unit is designed by using a single chip analog frontend AFE4300, and the detection unit is verified by the human body impedance simulation network. Theexperimental results show that the relative error of the system is not more than 1.5%, and the maximum error ofthe phase angle is not more than 0.8 degrees. The detection unit has simple hardware structure and can beapplied to the development of low cost and miniaturized bioelectrical impedance related health inspectionproducts.