Figure 2.
(a) The knob for microwave power is a discrete variac that regulates voltage at constant current. (b) Side and top views of the electrode design for the CDT system shows two flat plates with a semi-circular geometry along the direction facing each other. The ion-emitting negative electrode has a sharp tapered edge whereas the ground electrode has a rounded edge to mimic the point-cylinder geometry with an inter-electrode gap . (c) A centrifugal fan blows air through the inter-electrode gap to deflect the axial jet traversing from the negative to the ground electrode and converts it into a transverse jet of electric wind that transports the ions onto the fabric. (Online version in colour.)