Knowledge sensor is examined in paper currency discernment

The utility model discloses a knowledge sensor is examined in paper currency discernment relates to electronic components technical field, include: first convex lens, second convex lens, ultraviolet emission module, visible optical receiver module, shaping module and output module, the ultraviolet ray emission module set up one side of first convex lens, visible optical receiver module sets up oneside of second convex lens, the opposite side of first convex lens and the opposite side of second convex lens are all with to wait to detect paper currency relative, and ultraviolet emission module's emitting surface is relative with first convex lens, visible optical receiver module's receipt face and the second convex lens are relative, it is thus clear that optical receiver module's output with shaping module's input is connected, shaping module's output with output module's input is connected, output module's output is used for being connected with the input of outside controller. The utility model provides the