The invention discloses an electroencephalogram (EEG) neural
signal detector impedance test and activation matching
system, which comprises an upper computer and a lower computer, which are communicated with each other through a universal serial
bus (
USB), wherein the lower computer comprises a controller, an impedance analysis module, an
excitation signal conditioning circuit, a feedback signalprocessing circuit, an
electrode array switching switch, a channel switching circuit, a measurement circuit, a
galvanization and activation module and a
mode switching circuit; the controller controls the impedance analysis module to produce an alternative-current sinusoidal
signal, and the
signal is sent into a measured brain electric neural
signal detector through the
electrode array switching switch after being processed by the
excitation signal conditioning circuit; and the controller is also connected with the channel switching circuit to realize the switching among circuits. The
system is used for measuring and analyzing the impedance of the brain electric neural
signal detector and for activating the brain electric neural
signal detector which does not conform to signal collection requirements according to the requirement t be matched with a signal collecting
system, so the integration of the automatic test, analysis,
online test and analysis can be realized.