Corona discharge is a type of electrical discharge that occurs when a high voltage overcomes the insulating properties of a fluid, typically air. Other types of electrical discharges include spark discharge, glow discharge, and arc discharge. Common applications of corona discharge include copy machines, ionizers, and air purification systems that use electrostatic precipitation. Corona discharge in the air generates corrosive gases, including ozone and nitrogen oxides. As these gases are harmful to human health, appropriate safety precautions are required. It is also sometimes used to modify the surface of materials such as resin, paper, metal, and rubber.
A high-voltage power supply is essential for creating corona discharge and for powering devices known as corona generators.
- Related words:
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- Corona charging/discharging supplies
- Corona charging supplies
- Polymer and ceramic corona charging
