Instruments for Identification of Corona Discharge Presence by Spectral Characteristics of Acoustic Radiation

The chapter discusses the mathematical model of the spectrum-acoustic dependencies of corona discharge. The model was created using the inverse Fourier transform applied to the results of experimental data processing. The application of this mathematical model allowed the development of a method for detecting the presence of corona discharge based on the spectral characteristics of acoustic radiation. Using the developed method, a technique for recognizing corona discharge in the presence of external acoustic noise was devised. To enable the use of the method in the development of devices for detecting corona discharge, methodologies for stationary and mobile devices were developed. The effectiveness of the method for detecting the presence of corona discharge based on the spectral characteristics of acoustic radiation was verified using two DJI Mavic Pro quadcopters.