MULTI-CHANNEL BASED SKIN RESISTANCE MEASURING DEVICE AND METHOD

摘要

A multi-channel based skin resistance measuring device, comprising: a plurality of electrode sets (100), each of which comprises a plurality of electrodes (101, 102, 103, 104, 105) used for forming a plurality of skin resistance measuring channels so as to acquire skin resistance change signals of different parts of a human body; a path selector (200), which is connected to the plurality of electrode sets (100) and is used for selecting and conducting one electrode set of the plurality of electrode sets (100); and a proportional operation circuit (300) used for receiving skin resistance change signals measured by the electrode set (100) selected by the path selector and amplifying the received signals. The proportional operation circuit (300) comprises a first branch connected in series with the plurality of skin resistance measuring channels and a second branch connected in parallel with the first branch, wherein the first branch comprises a first input impedance, and the second branch comprises two second resistances, a voltage value between two second input impedances being half of a driving voltage among the resistance measuring channels. The present invention further relates to a multi-channel based skin resistance measuring method.