A measurement of acupoints bioimpedance based on PCI8335B

Acupoints are the positions that the Qi and blood inject in the bodies. The changes in Qi and Blood of the human body would be shown in the changes of corresponding acupoint, with the changes of electric properties of these acupoints. This paper designs a hardware system based on the acquisition card PCI8335B, Which is mainly composed of AD9833, AD620 and AD8302. To measure the acupoints impedance, VB language is adopted to program the PCI8335B and to collect the electric signal from acupoinst.