Application device for applying a fluid product whose dosing flow depends on the speed of an opening through which the fluid product is output

An application device for applying at least one fluid product on a substrate, the application device comprising:

• an application member, for shaping the or each fluid product for its application on the substrate, the application member comprising an outlet orifice through which the fluid product(s) come out of the application device;
• for at least one fluid product, an adjusting member able to adjust a dosing flow of the fluid product through said outlet orifice as a function of a command input of the adjusting member;
• a command module for determining the command input and supplying it to said adjusting member;
• and
• a speed measuring device able to determine a measured speed of said outlet orifice relative to an inertial reference, wherein said command module is configured to determine the command input as a function of the measured speed.