Particle Charging

Particle Charging

Our typical ESP as shown in Figure 1 has thin wires called discharge electrodes, which

are evenly spaced between large plates called collection electrodes, which are grounded.

Think of an electrode as something that can conduct or transmit electricity. A negative,

high-voltage, pulsating, direct current is applied to the discharge electrode creating a negative

electric field. You can mentally divide this field into three regions (Figure 2). The

field is strongest right next to the discharge electrode, weaker in the areas between the discharge

and collection electrodes called the inter-electrode region, and weakest near the

collection electrode. The region around the discharge electrode is where the particle charging

process begins.

                                                            Figure 1

                                                                        Figure 2