Optimization of the parameters of electroacoustical measuring channel

Abstract

It is shown that when constructing electroacoustical measuring channels it is necessary to choose the parameters of the transducers and places of their arrangement so, that acoustical communication was stable. The algorithms for determination places of arrangement of an electroacoustical transducers and their orientation are proposed. These algorithms can be used for the case when the media is proximity homogeneous and its velocity of movement is small. When the media is unhomogeneous or the velocity of its movement is large, the phenomenon of refraction occur. Therefore the path of propagation of acoustical signals is changed and places of arrangement of transducers and their orientation in the measuring channel can be calculated by the algorithm. It is show the influence of the angle of radiation of acoustical signal on the shift of them along the flow axis and on the time of their propagation in the media under control. The diagram for selection of parameters of the electroacoustical measuring channel is presented.