For the calculation of QA (angular frequency times the average stored energy in the near field divided by the radiated power), the radiation from the piezoelectric element is assumed equivalent to a simple electric dipole wire. This is supported by the similarity of the simulated piezoelectric disp...
for multiple environmental cases, presenting electric charge accumulation functions and their dependency on the environmental conditions; the proposed mechanisms have been validated by solving a reversed problem, based on corona detection and the re-calculation of the primordial electric field strength [8]...