Automatic control principle experimental module

An automatic control principle experimental module comprises an analog circuit, a power switch, a power supply output end, a voltage regulating knob, a signal output end, a signal input end and a peripheral component interconnecting slot, wherein the analog circuit is based on experiment content of typical nonlinear link static characteristic test, the power supply output end supplies variable voltage for the analog circuit, the voltage regulating knob regulates the voltage of the power supply output end, the signal output end outputs a measuring signal of the analog circuit to an experiment platform, the signal input end switches over the measuring signal of the analog circuit to the signal output end, the peripheral component interconnecting slot is connected with the experiment platform, and the analog circuit is integrated in the automatic control principle experimental module. The automatic control principle experimental module saves too much time of an experimenter on component preparation and experimen