Experimental study on energy characteristics and ignition performance of recessed multichannel plasma igniter
Cai Bang-Huang, Song Hui-Min †, Jia Min, Wu Yun, Cui Wei, Huang Sheng-Fang
       

Discharge waveform of igniter (a) conventional spark igniter, (b) recessed three-channel plasma igniter, (c) recessed five-channel plasma igniter.