Bogachev I. Control system for determination of descriptions of the ultrasonic field with the use of littleaperture magnetostrictive transducers.

The object of research: process of control of descriptions of the ultrasonic field in solids with the use of littleaperture MST. The purpose of research: development of method and creation of system of checking of descriptions of the acoustic field in solids with the use of littleaperture MST. Methods of research: methods of technical diagnostics; theory of measurings; theory of chances and mathematical statistics; methods of treatment of signals; computer and mathematical design. Theoretical and practical results and innovations: the method of control of descriptions of the acoustic field is first offered in a solid with the use of littleaperture MST, which have a spherical diagram of orientation, that allowed to promote a spatial discriminability and exactness of measuring facilities; the mathematical model of functioning of littleaperture MST is improved with the use of chart of Meson, that enabled to define basic descriptions of MST, which are necessary for the analysis of processes of control of descriptions of the ultrasonic field in solids; analytical methods by which design-engineering decisions were grounded for the improvement of descriptions of MST got further development, that allowed to promote the coefficient of electromechanics connection of transducer, antijammingness and exactness of control of descriptions of the acoustic field in a solid; the complex method of treatment of acoustic signals got further development, which allows to get peak and phase descriptions of signal and increase the discriminability of the system; the method of experimental determination of descriptions of the ultrasonic field of FAA is improved, which allows to probe distributing of the ultrasonic field on the surfaces of FAA and acoustic intercommunication between their elements in the conditions of the acoustic loading. A subject and degree of introduction: the checking of descriptions of the ultrasonic field in solids system is used in NPP «Engineer», Dnepropetrovsk; the littleaperture ultrasonic MST are used in LTD «NPP «Ultracon», Kiev; the line of littleaperture ultrasonic MST is used in LTD «NPP «Promel Energyautomation», Kiev. Effectiveness of implantation: the considerable technical and economic effect, that is consisting in increase of indexes of authenticity and efficiency of ultrasonic control of wares from hard materials, is got. Sphere of use: the systems of ultrasonic checking of wares from hard materials.