Abstract:

Exactly measuring droplets charging was the key to freeform fabrication by use of droplet spray. In this work, an electrostatic model of droplet charging was developed, and an algorithm for exactly predicting the charging on the droplets was presented, which reflected the electrostatic effects between droplets. The droplet charging model was solved in different conditions by FEM. The charging amount was predicted with the algorithm basing on the FEM results. The relationship between the charging voltage and the charging were established in different disturbance frequency.

Key words: droplet,  , electrostatic , field , electrostatic , model, charge, FEM