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Several forms of electrostatic
publisherALPTEC
time2020/08/07
- This article outlines several forms of electrostatic generation.
1. Contact electrification
Contact electrification can occur at the solid-solid, liquid-liquid, or solid-liquid interface. If there are solid particles or droplets suspended in the gas, the solid particles or droplets can be charged by contact, so that the gas can carry electrostatic charges.
2. Power-up
3. Induction electrification
A conductor can be charged by
induction by one or some charged objects around it. Insulation between live
conductors and surroundings will carry potential, which is called induction
charging. The conductor carries a potential, plus it carries a separate charge.
Therefore, the conductor can be electrostatic-ally discharged.
Condition: A charged body is
in contact with a non-charged body, and the charge is distributed between them
according to the degree allowed by their respective conductivity. This is the
charge migration. When charged droplets or dust hit a solid (such as
electrostatic precipitation), it will produce a powerful charge migration.