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The article explains the ways of reduction of error component of sensor communication lines capacity in using a frequency-independent dipole, an inverter, an analogue adder and measuring circuit pulse power.
In work problems of detection of sources of radio signals in rooms of room type against various hindrances as are regular also noise, and powerful pulse are considered. Robastnymulti-threshold approach for increase of detection of informative signals is offered. Problems of the choice of quantity and values of these thresholds are discussed. Specifics of application of this approach for a case of...
Here is given the explanation why a sine which is con-verted into a pulse-width signal (also known as “PWM signal”) due to sawtooth voltage has less first harmonic's error than a pulse-width signal being gotten via calculation depending on the signal's level at the middle of a period (on this period, there forms a signal's impulse with pulse-width modulation.), in its area or RMS value of the signal...
in the article carried out comparative analysis of three methods of measuring time frequency measurement - measurement method frequency by counting the frequency of the standard periods for integer periods of the measured frequency; measurement method frequency by counting the frequency of the measured periods for integer periods of the standard frequency; measurement frequency by method coincidence...
The present article is concerned with the experimental study of the influence of the LEDs brightness on the structure of the image of the dynamic test object. Qualitative dependences of the LEDs brightness of the dynamic test object from the flowing current were obtained. The necessity of a number of design solutions to ensure the normal operation of the dynamic test object was found out.
The authors have developed a software component of firmware complex “AKTOMIKA” intended for processing of satellite images with meteorological other purposes. The paper discusses the achievements and prospects of development of the current system. It presents illustrations showing the results of the system working.
The paper discusses the basic problems of frequency measuring and methods for improving the accuracy of these measurements. It reveals shortcomings of counting method and the advantages of the method of integral periods. Also it discusses the division of frequency measurement between standard and unique devices for these purposes.
Precision phase measurements are necessary in many sectors of the measuring equipment. The most important parameters of these devices: 1) carrier frequency range; 2) changing range of the measured phase difference; 3) the phase measurement error; 4) frequency range for phase increments. The paper discusses the opportunities and challenges for precise measurement of phase differences for these purposes.
The article presents the idea on development of low-cost electronic training boards for the study of microprocessor technologies. Training boards demonstrate the all capabilities of the micro-controller: work of i/o ports, serial communication, ADC, DC and stepper motor, two-line LCD display, temperature sensors, DC motor control, stepper motor control and etc.
The author has organized the project activities of computer modeling in teaching physics for IT students at the Novosibirsk State Technical University. The students' teams develop soft-ware products that are virtual counterparts of experimental setups. The developed programs can be used as interactive virtual labs that enhance the physics laboratory practicum. Participation in the project activities...
Development of engineering education in a contemporary research university is relied on the international CDIO (Conceive - Design - Implement - Operate) standards. An important part of the process is development of technologies of methods for development of practical skills of engineering skills of students in electronics. In this paper we discuss the problems of development of laboratory facilities...
The article describes the main approaches to the use of modular training systems intended for NSTU students laboratory works in physics. Applying these systems is assumed in educating of schoolchildren to project research activity. Examples of laboratory equipment application during physical experiments performed by students of specialized classes are demonstrated.
The possibility of an experimental study of the magnetoimpedance effect (MI) by students of higher school is considered. This study can be performed within the framework of laboratory works on such disciplines as «Physics of magnetic phenomena», «Electrodynamics», «Electrical engineering» and the like. The minimal equipment kit for study of the MI is described. And also the ways of enhancement for...
The results of the development of configurable educational stand on analog and digital circuitry laboratory works are presented in this paper. The stand's flexibility allows changing the set of the objects under study (to change the configuration) and lets you adjust the stand and laboratory works to electrical engineering, industrial electronics and other disciplines. Students, which are working...
The multimedia facilities workability in the ‘Physics’ course engineering students' laboratory works independent preparation is considered in this piece of work. The examples of the video instructions packages provided with the laboratory tests, which are performed by the NSTU General Physics Department students, are also shown in the article.
The article deals with modern electronic equipment de-signed to study construction materials (concrete example). In particular, the results of the work on the equipment in the educational and scientific institutions of Vladivostok and Belgorod. Morphological features of the microstructure of the material using electron-electron microscopy; size distribution of materials; the specific surface area...
New design approach and software package for computer modeling of virtual education laboratory works is proposed. Measurement equipment in virtual laboratory has interface and behaviors which are identical to real devices and allow studying characteristics of UHF devices and elements.
The paper describes the laboratory bench, structure and the contains of the laboratory course, intended for study of principal components of the robotic platform NI Robotics Starter Kit 2.0 with the differential drive of wheels, the basic principles, and also design tools and system of navigation and motion control of the mobile robot.
A voltage on grounding equipment of high-voltage substation measurement algorithm has been proposed. The algorithm involves calculation of potential-raising current taking into account transformers' grounded neutrals and earthwires of overhead power transmission lines. A installation for modelling processes that cause occurrence a voltage on the grounding arrangement has been developed.
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