Direct digital synthesis (dds) in control systems ultrasonic resonance actuators
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2012, Vol 0, Issue 48
Abstract
The principles of construction management schemes ultrasonic resonant actuators using direct digital synthesis (DDS) and the use of pulse width modulated signal in the output power stage, with the use of modern microprocessor components. The advantages of such schemes on the efficiency and adaptability, opportunities for integration into modern computerized automatic control system over conventional management schemes ultrasonic resonant actuators. Identified areas for further development of control systems of ultrasonic resonance drives with digital circuits.
Authors and Affiliations
V. Fesich
Signal processing domain-acoustic processor in the autocorrelation mode
It is analyzed the signal / noise ratio, which can be achieved by the signal processing domain-acoustic processor. It is shown that the quality of signal processing by this method ideally determined by the quality of the...
Method of improvement of optical coordinators with use of positionallysensitive matrixes
The analysis of existing matrixes of photosensitive elements is carried out; new types of such matrixes and ways of definition of angular co-ordinates in the optical coordinators constructed on their basis are exampled;...
The application conditions of the compact modified method of curve fitting for parametric synthesis of switched-capacitor networks
The topological and algebraic conditions for formation of ARC-prototype state equation were obtained to diagnose the possibility of application the compact modified method of curve fitting for parametric synthesis of SC-...
The main characteristics of SiGe HBTs at low temperatures
The current-voltage curves (CVC) of n-p-n SiGe heterojunction bipolar transistors (HBT) are considered within the temperature range from minus -195˚С up to 25˚С, produced on the SGB25V technology of IHP. The experimental...
Eguipment and technologies of low intensity millimeter therapy
Introduction. Mastering the millimeter range of wavelengths has led to apperence of different types devices and their usage in many fields of science and technology, including the practical medicine. As shown by numerous...