Rezumat
The paper describes features of the visualisation EHD-flows methods. It is demonstarted that the most precise method is the method of visualisation by means of gas bubbles. The paper contains methodology of processing photo and video materials of EHD-flows by means of special programmes, developed by authors. The programmes are based on well known mathematical systems MathCad and MatLab. The results of EHD flows processing are shown as vector feilds, picture of isolines of velocity and surface diagram. Relative error of method is evaluated here. It does not exceed 10%. The paper contains analysis of received data and zone structure of EHD flows. The value order of attached mass of separate ion within the limits of central part of EHD-flows is identified.