Vol 13, No 2 (2014)

Explain the principle of automated selection of uniform design of the cooling system, implemented in the pr ocess of designing termal electronic means, which uses the results of natural and computational experiments.

The paper describes the system of obtaining radar images, using as a probe signal of TV broadcasting scheme of bistatic SAR. Describes the major functional and design characteristics of the equipment examined formation algorithm radar. Also the results obtained in the course of a natural experiment.

Suggests  ways to bridge the  inclusion of the active transducer element autodyne in order to obtain the info rmation signal to determine the parameters of movement of elements of turbine rotating parts.

The article discusses a device for removing the phase response of amplifiers. Describes the principles of its operation are given diagrams voltage outputs blocks that make up the device. The processes of change in the phase shift of the output voltage of the amplifier, signal conversion, and coordinates. Formation of orthogonal initial tension and their conversion from rectangular coordinate system in the polar is probed.The advantage of the device is represented by a high precision removal phase response of the amplifier.

Considered control device radioelements nonlinear distortion in the transmission path and the amplification of electrical signals. On the causes of non-linear distortion. Given the composition of the control device and communication between its units. Shows the process of converting radio signals. The device provides higher selectivity and precision of control.

The article describes the control device, allowing to make rejection of semiconductor diodes. The proposed device has a high accuracy and reliability of the control. The device allows you to set different rates of change of the out-put voltage of the sawtooth generator. Quality control is performed by diode reverse branch of the current-voltage characteristics. The device provides a better signal / noise ratio at low current levels.

This article is devoted to constructing instrumental tools of noninvasive measurement of arterial blood pressure. The structure of blood pressure monitors based on simultaneous using of oscillometric and auscultatory measurement methods is considered.

The article is devoted to analysis of random uncertainties of heart rate variability indices. The article contains the algorithm of Hurst indicator calculation based on RS-method and algorithm of calculation of fluctuation coefficient based on Detrended Fluctuation Analysis. The dependence between relative uncertainty of heart rate variability indices and absolute uncertainty of measurement of beat-to-beat intervals is estimated. The conclusion about sensitivity of heart rate variability indices used in the article to the uncertainty of measurement of beat-to-beat intervals is made.

Theoretical fundamentals of optical measurements informative components of complex movements on the ba-sis of multivariate test objects are explicated.

The expediency of replacing coatings based on lacquer UR-231 on the film of poly-p-xylylene in electronic units of space instruments. To confirm the possibility of using this coating technique proposed accelerated test and test instrument design unit and an electronic assembly. Made impacts and selection of test equipment. The technique of application of poly-p-xylylene on the working surface of the electronic unit.

Presents a new class of converters of angular and linear elements rotating units power units, allowing with the minimum of preparation to ensure accuracy and reliability of the control of movements in real operational conditions.

In this article the method of compensation of auxillary measurement error by means of optical and electronic complex of the parameters of surface microrelief which appears as a result of the deflection of the light flux level from its nominal meaning is viewed. The method is based on the determination of autocorrelative functions by the image of analyzed surface.