ACOUSTIC LEVITATION FIELD CONTROL USING ULTRASONIC PIEZO TRANSMITTERS
Relevance In this work, the problems of modeling the acoustic field of levitation, the formation of this field were considered. The calculations of disturbances and modeling of the «failure» element for phased arrays with ultrasound sensors 16 x 16 in the Matlab environment are shown. Aims of research Consider and simulate examples of distance measurement and object recognition, level or velocity measurements, welding or gluing, high resolution testing. Electroceramics, materials that change their shape when an electric field is applied and generate electricity when a force is applied, are great for this purpose. The piezoceramic class is commonly used. Cost savings are one of the key factors. Research methods The article presents a fragmentary development and assessment of an integrated environment for modeling heat, air and humidity for modeling and modeling dynamic processes of an acoustic environment. All models are implemented in the MatLab computer software package using SimuLink and Comsol. This work includes more than 3 different models related to acoustic properties for the implementation of control of the acoustic levitation field using ultrasonic piezo emitters. Most of the models have been successfully validated (using analytical solutions or by comparison with other simulation results). The use of a modeling environment to solve design problems is demonstrated in a thematic analysis of literature sources. In general, we can conclude that the modeling environment is capable of solving a wide range of complex problems related to heat, air and humidity. In addition, it is promising for solving current modeling problems caused either by the difference in time constants between HVAC components and building response, or by problems caused by the lack of building modeling tools that include 2D and 3D part modeling capabilities. Results In the Comsol package, calculations of the total acoustic pressure are performed and a graph of the dependence of pressure on distance for a model of an ultrasound sensor is also considered. In addition, the analysis of both software packages was carried out and the results of their application for the problem of modeling the acoustic field of levitation for a phased array with piezo emitters were shown. The creation of a layout control system can be implemented directly in the Matlab environment, but it is limited in the basic calculation systems. The integration of the two packages will create the basis for the implementation of a levitation acoustic field control system.