ELECTROSPRAY PROTOTYPE
This electrospray prototype was designed and manufactured during one of my previous internships over a period of 8 weeks. My task was to design an interchangeable orifice plate enclosure for testing with smaller particles.
OVERVIEW
One example of an electrospray is the commercially available Model 3480 Electrospray Aerosol Generator. An electrospray takes a solution with suspended particles and uses a magnetic field to aerosolize the particles.
The solution is pushed through a capillary and a magnetic field is applied to form the tip into a shape called a Taylor Cone. The field is generated by creating a voltage difference between an orifice plate in front of the capillary and the capillary itself. The droplets are so small that the liquid evaporates leaving only the particles which then exit through a hole in the orifice plate.
FINAL PROTOTYPE
Two main sections were machined Delrin plastic and stainless steel. Capillary clip is machined steel.
The final prototype consisted of two main parts: the capillary side and the orifice side. This was done in order to accommodate for a removable orifice plate in cases when a larger or smaller hole is needed. The different sized holes alter the magnetic field and so does the voltage difference.