MECHATRONIC CONTROL SYSTEM OF ULTRASONIC TUBULAR CAVITATOR
DOI:
https://doi.org/10.20535/2305-9001.2014.72.35949Keywords:
ultrasonic cavitation treatment, ultrasonic actuators, mechatronic control system, ultrasonic cavitation, the control algorithmAbstract
The aim of the article is to provide control algorithm of multisection tubular ultrasonic flow cavitator.
In the present paper analyzes the basic construction of ultrasonic flow cavitators. This article shows the features of cavitation fields formation under various conditions of fluctuations of walls cavitator. We have analyzed the problems that arise in the design of an electronic control system with ultrasonic cavitators. The article discusses questions which touched the features of modern element base for control system ultrasonic cavitators. The authors of this paper was developed a control block diagram of multisection ultrasonic flow cavitator. In the present study were shown the possible changes that may occur in the control block diagram associated with changes in the number of cavitator sections. This article describes the implementation features of the proposed control system. An example selecting element base for the implementation of the control system. Shows the interaction functional units of the control system among each other. We have an algorithm for maintaining the resonant mode of the ultrasonic actuator work. We have examples of hardware and software implementation of control systems once and multisection by flow cavitators.
Conclusion. Proved the feasibility of direct digital synthesis signal to control the ultrasonic actuators.
Stabilization of the consumed power by the cavitator sections allows maintaining ultrasound energy density means productivity of technological process at set level.
Using of programmatic facilities of management allows you to adjust the ultrasonic cavitator the requirements of the technological process without making structural changes in the mechatronic systems of control.
The use of parallel structure control system improves reliability by reducing the load factor of the power components and power supply generator with external excitation.
Using a binary feedback signal sharply improves the overall noise immunity.References
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