摘要
提出一种基于虚拟仪器的便携式生物阻抗测量系统.该系统前端以ARM Cortex-M3内核新型微控制器stm32和阻抗测量芯片AD5933为核心,通过USB总线与主机相连接,根据四电极法测量原理、DFT数字解调结合软件校准和补偿的算法,实现了高精度的生物阻抗测量.该系统体积小、集成度高、成本低廉,可广泛用于家庭保健、医疗机构和生物医学领域的实验、研究工作.
A portable bioelectrical impedance measurement system based on virtual instrument is presented. The measurement front, with an ARM based microcontroller and integrated impedance converter chip as its core device, communicates with the host computer via USB bus. Based on the four-electrode technique, DFT digital demodulation and software calibration and compensation algorithm, the system realizes high precision bioelectrical impedance measurement. With the advantage of high integration and low-cost, the system can be widely used in household healthcare, clinics and biomedical research and testing.
出处
《常熟理工学院学报》
2009年第8期90-94,共5页
Journal of Changshu Institute of Technology
