【摘要】 针对五段人体阻抗模型难以反映人体躯干体成分变化的不足,提出了八段人体生物电阻抗模型,从理论上分析了八段模型的求解方法;在此基础上,设计了基于ARM-Linux的八段人体生物电阻抗测试仪,较为详细地论述了该测试仪的硬件设计、软件设计及图形用户界面设计,并对所设计的仪器进行了实验验证。实验结果表明,基于八段阻抗模型的人体生物电阻抗测试仪可提供更为准确的人体躯干阻抗测量结果,是对人体体成分测量的有效改进。更多还原

【Abstract】 To solve the problem that five-segment impedance cannot clearly reflect body composition of human trunk,eight-segment impedance model is proposed,and the solution of this model is analyzed theoretically.Based on this,eight-segment bioelectrical impedance analyzer based on ARM-Linux is designed,hardware design,software architecture and graphical user interface are elaborated,and the correctness of this analyzer is verified through experiment.The experimental results show that the human impedance analyzer based on eightsegment impedance model can provide more accurate impedance of trunk,which is an effective improvement on human body composition measurements.更多还原