We also set up an impedance model of the environment during the contact, and propose the calculating method of virtual contact force.
建立了环境在稳定接触过程中的阻抗模型，提出了虚拟力的计算方法。
2
The influence of virtual coupling cell on the stability and transparence of force interaction system was discussed, under the information flowing mode of impedance display.
讨论虚拟现实力觉交互系统中，阻抗再现方式下虚拟匹配单元对系统稳定性和透明性的影响。
3
An virtual electronic automatic matching system was designed, used for RFID antenna impedance.