Багатоканальні аналого-цифрові системи, що самокоригуються для опрацювання акустичних сигналів

Abstract

Master's degree qualifying work is devoted development of the multichannel analog-digital system, that self-calibration for working of acoustic signals. The first part contains the state-of-the-art review of structural and sckematics decisions and methods of self-calibration of the measurings ac-systems. The second part is devoted the state-of-the-art review of structural and sckematics decisions and methods of self-calibration of the measurings AC-systems. In the third part complex researches of the AC-system are considered in clinical terms adjustment of scheme and programmatic decisions. An economic calculation is carried out in fourth part. Actual is a construction of models which will be binds metrology descriptions of ACP and their devices with the criteria of efficiency of the designed AC-system. During planning of the AC-systems for working of biomedical acoustic signals there are questions of evaluation of efficiency, development of complex of metrology descriptions, mathematical design and sckematics planning of the AC-systems, on the whole and it separate analog devices. As a result of the executed analysis are such conclusions got:  possibility of improvement of static and dynamic descriptions of the AC-systems is rotined for working of low frequency signals by application of ACP and DAC with gravimetric surplus;  the flow diagrams of the AC-systems are offered for measuring and analysis of low frequency signals on the base of calibration ADC and DAC. Is it well-proven that their use is improved by the value of static and dynamic parameters of the systems;  requirements are formulated to the basic technical parameters 4-channel the corrected AC-system of working of biomedical acoustic signals;  achievement of the indicated technical requirements is confirmed the results of previous experimental researches and parameters of analogical wares and systems.