Abstract
The effect of airflow on the radiation characteristics of negative corona discharge was researched. The experiments were performed using three kinds of needle-ring discharge configurations in the high-speed airflow environment created by an air amplifier. The Trichel pulse waveform and radiation signal received by antenna were collected simultaneously. From the computation of smoothed pseudo Wigner-Ville distribution, it is found that the velocity and direction of airflow have a significant impact on the Trichel pulse period. When the direction of airflow is in parallel with the electric field, the Trichel pulse period increases; when the airflow is in the opposite direction of the electric field, the Trichel pulse period obviously shortens; and when the airflow is vertical to the electric field, the pulse period slightly shortens. The results show that the change of airflow has a less effect on the radiation spectrum of discharge which radiation energy is concentrated in 200 MHz.
| Original language | English |
|---|---|
| Pages (from-to) | 332-336 |
| Number of pages | 5 |
| Journal | Binggong Xuebao/Acta Armamentarii |
| Volume | 33 |
| Issue number | SUPPL2 |
| Publication status | Published - Dec 2012 |
Keywords
- Airflow
- Applied physics
- Smoothed pseudo wigner-ville distribution
- Transmitted spectrum
- Trichel pulse