Device and method for testing the spray jet of an assembly of spray applicators

A device (50) for testing a spray jet (10, 12) of an assembly (52) for spray applicators, comprising:

• at least one receiving unit (54) for the assembly (52) to be tested;
• at least one liquid reservoir (60) for a test fluid (58);
• an actuating unit for the assembly (52) to be tested;
• a light barrier with a strip of light (66) or a light beam, the light barrier being positioned in front of the assembly (52) to be tested such that the spray jet (10, 12) produced by the assembly (52) to be tested encounters the strip of light (66) or the light beam;
• a sensor unit (68), by which a darkening of the strip of light (66) or the light beam can be measured;
• an integration unit (70) for integrating recorded measured values (14) indicative of the darkening;
• and
• at least one evaluation unit (72) for evaluating the recorded measured values (14) and the integral (30) of the recorded measured values (14).