Method and device for analysing a device for spraying a pharmaceutical fluid product

A device for analysing a device for spraying a pharmaceutical fluid product, characterized in that it comprises:

• a spray head for a device for spraying a pharmaceutical fluid product, said spray head comprising a spray orifice;
• a receiving surface comprising a perforated plate comprising a plurality of holes, each hole being associated with a ball, in particular made of polystyrene, guided in a guide channel, in particular made of glass, said guide channels extending parallel to one another until reaching a transparent pane,
• an electrical device for charging said perforated plate with an electrostatic charge to attract said balls by static electricity to said holes of said perforated plate,
• means for generating a gas stream in order to pass a gas stream through said spray orifice of said spray head and sending it onto said receiving surface, said balls that are hit by the gas stream being moved to said pane,
• a camera for visualising the impact zone for said compressed gas stream on said receiving surface by taking an image of the balls that have been moved by said gas stream to the pane, and
• analysing means for analysing said image of said impact zone in order to determine whether or not said impact zone complies with predetermined specifications.