The near and far fields of traditional loudspeakers are differentiated by whether the sound pressure amplitude is inversely proportional to propagating distance. However, audio field generated a parametric array loudspeaker (PAL) more complicated, in this article it proposed be divided into three regions: field, Westervelt inverse-law field. In experiences strong local effects an efficient quas...

Editor’s note: This book is useful for all designers who need to test or have their designs tested for emissions, radiation and susceptibility for EMC. It can also help a wide range of specialists in biology, medicine, labor safety, environmental protection, metrologists, EMF meter designers, testers and users, and even for those who must make legal decisions on the grounds of measurement resul...