1. Objective To study the specificity of the volt ampere characteristics of acupoints in reflecting the physiological and pathological changes of the human body.

2. The volt ampere properties of electrolyte in pulse electrochemical finish machining (PEFM) are investigated in this paper.

3. In this paper, the working principle of a langmuir probe and its measurement technique applied in the plasma volt ampere characteristic curve are discussed.

4. The results show that the composite exhibits percolation threshold effect, positive temperature effect and nonlinear volt ampere characteristics.

5. The equivalent impedances of inductor and capacitor in transient response were deduced from the exponential transient solution and the volt ampere relation of these elements.