生物阻抗测量原理与测量技术

Bioimpedance Measurement Theory and Technology

生物阻抗是反映生物组织、器官、细胞或整个生物机体电学性质的物理量。可以通过将低于兴奋域值的微弱直流和交变电流施加于生物组织后，测量其上的电位差来间接测量，属于电生理学的研究范畴。许多学者已经从理论和实验上对生物组织的电特性进行了研究。本文对生物阻抗的测量原理和测量技术进行了综述。

Bioimpedance is an electrical character of living tissue, organ, cell or living body. When direct oralternating current of effective value below the exitation threshold passes through the living tissue, bioimpedancecan be measured indirectly by voltage. It has been studied both theoretically and experimentally by many researchers.In this paper, the bioimpedance measurement theory and technologies are reviewed.