阻抗法人体成分测量装置的研制

An instrument for estimating human body composition using impedance measurement

本装置根据生物组织的电阻抗持性，设计在1k、5k、10k、50k、100kHz五个频率点上测量人体阻抗值，再用经验公式计算出人体的FAT、FFM、FAT％、TBW、ECW、ICW等参数。装置采用8031单片机作为控制中心，与人体相连的电路部分全部实行浮地。装置安全可靠，重复性好，操作方便。初步的临床实验表明，该装置的测量结果能较好地反映人体的实际情况。

According to the impedance feature of biological tissue, the instrument was designed at 1, 5, 10, 50, 100kHz to measure human impedance, and then to calculate human FAT, FFM - FAT%, TBW, ECW, ICW and so on. A 8031 singlechip microprocessor was used as a control center in the imstrument. The part of electric circuit contacuting human body in the instrumant was unreally earthing. The instrument was safty, effective, repeatable, and easily manpulative. Prelimintary clinical experiment showed the results measured with the instrument could effective1y reflect practical, status of human composition.