Variable height for thrust correction through pressure sensing in electrostatic coating system

An electrostatic edible coating system having a variable height mechanism for thrust correction through pressure sensing comprising:

• a first unit consisting of a motion and orientation control and twin-phase air-assisted and forced-liquid flow based electrostatic nozzle(s);
• a second unit comprising a roller-conveyor, a material accumulator for drifted uncoated-coating material, a pressure sensor and an induction motor configured to drive the roller-conveyor, and
• a third unit consisting of a control unit for position and orientation, an electrical cabinet including application specific high voltage power supply unit with current controlling mechanism for charging of liquid sprays and input voltage signals to drive motors and controlling units, an air compressor, a coating material reservoir and a liquid flow control pump,
• wherein disinfected, washed and dried fruits and vegetables fed on a receiver unit of roller-conveyor system driven by the induction motor with controlled revolutions per minute (rpm) and power are coated with coating material from a material reservoir, pumped by the liquid flow control pump to twin-phase air-assisted and forced-liquid flow based electrostatic nozzle(s) via a manifold with controlled pressure and residence time for uniform coating of edible materials with different viscosity.