ZM is a technic company specialy develop process monitoring of non-luminous particles or liquid drops are the application field of the system. Relevant process variations in velocity, gas flow rate, and particle flux or particle density are detected online. A computer displays the information about the actual state of the ongoing process (good or bad).Appropriate and timely interactions by the user.....

S LINSPRAY Process Monitoring (Particle Flux Imaging)

Principal functionality of PFI-S

Particle Flux Imaging (PFI) is a diagnostic tool for all kinds of thermal spraying processes.

A small, dust-protected CCD camera is mounted close to the gun on the gun bracket. During the ongoing process the PFI-S camera moves with the gun and continuously images the whole area between the gun and the substrate surface. The radiation of the plasma jet and the particles, as well as of the spray spot are recorded over the visible spectrum. A computer reduces the information contained in the images by attributing ellipses that with their typical quantities characterize the actual state of the gun, the particle flux and the coating.