Feedback Control of a Self-Excited Electrostatic Wave in a Positive Column

抄録

Experimental results on a feedback control of a self-excited electrostatic wave in a plasma are compared with a theory where an internal feedback is linked with the external feedback to give a unified account for the feedback control mechanism. The frequency and the damping rate of the self-excited wave undergo some changes upon the application of the external feedback. A good quantitative agreement between theory and experiment is obtained.