IDM: Inkjet Droplet Measurement

Droplet size and velocity spray distribution measurements

Droplet size versus time, 40 drops generated, 40 drops measured.

Droplet velocity versus time for a single injector scan generating 40 drops.

Droplet size and velocity distributions. Drop size standard deviation to less than 0.05 μm.

Two components of droplet velocity measured with stability to 3 to 4 mm/s and a resolution of 0.1 mm/s.