Sensors and Systems Journal, No. 7, July 2009 (Contents and Abstracts)

Svintsov I.V., Protalinsky O.M., Svintsov V.Ya. Phase method for unauthorized break-ins detection

The paper describes a phase method for detecting unauthorized access to telephone lines,

Keywords: telephone line, unauthorized access, detection, impedance, phase method.

Andreev A.M., Romanenko N.G. Microcontroller-based control system for supporting axles of KAMAG heavy-load trailer

A trailer moving mechanism and the modernized control system operation are described, calculation results are included. The advantages of the modernized control system as against the old one are demonstrated.

Keywords: control system, modernization, rotation of axes, booster jacks, rheostat sensors, microcontroller.

Maschenko A.I., Kuz’min G.Yu. Distributed automation systems for heating, hot water supply, ventilation, and air conditioning on the basis of Lon Mark technology

The paper describes various design of heating and water supply control systems for residential areas based on centralized and distributed architecture.

Keywords: heat supply, controllers, centralization.

Yesaulenko V.N., Prokhvatilova L.I., Nikul’shin I.V. Nonlinearity correction of the static characteristic of an aerodynamic bottom-hole drilling fluid pressure sensor

Input signal conversion circuit for an aerodynamic bottom-hole drilling fluid pressure sensor is presented for the linearization of its static characteristic.

Keywords: bottom-hole pressure sensor, well-boring, static characteristic, linearization.

Golovko S.V. Fuzzy logic-based control system for electrical equipment

The development process of an intelligent control system for electrical equipment with the help of MathLAB graphics and Fuzzy Logic Toolbox is described.

Keywords: fuzzy logic, control system, electrical equipment.

Buslaev S.P. Stand-alone stereo vision in intelligent measuring systems for space and pilotless vehicles landing

The paper describes the application of stand-alone stereo vision systems for position, velocity and orientation measurement of space and pilotless vehicles during landing as well as for alighting area selection.

Keywords: stereo vision, digital model of the territory, machine vision, automatic landing, space vehicles, pilotless vehicles, motion control.

Aleshechkin A.M. Increasing the reliability of radio navigation parameter estimates in the radio navigation systems with phase sensors

The article examines ambiguity resolution algorithms for phase shift measurements with reference to Krabik radio navigation system equipped with a signal phase shift sensor. The probability of the phase ambiguity resolution is calculated for various metric frequencies. The recommendations on frequency plan correction are made which ensure higher reliability of radio navigation parameter estimates.

Red’ko V.V. Mathematical models of redundant measurements of physical quantities with quadratic and cubic transformation functions of measuring channel

The paper discusses accuracy improvement of physical quantities measurement for quadratic and cubic transformation functions of measuring channel. It describes mathematical models of redundant measurements enabling automatic correction of systematic components of measurement error.

Keywords: redundant measurements, mathematical model, quadratic and cubic transformation functions.

Zhelamsky M.V. Global system of virtual and augmented reality for enclosed spaces

A concept of new infrastructure for modern megapolis is offered. It is virtual and augmented reality systems with unlimited region of the user movements. The existing positioning systems are analyzed. Positioning accuracy requirements in urban conditions are defined. The size and electrical parameters of the components of the system proposed are evaluated. The properties and the advantages of the new information field are described. The components of the new system and its operation are described. Possible applications are outlined.

Keywords: megapolis, augmented reality, positioning, enclosed spaces, information field, magnetic field generator, portable receiver, noise immunity.

Veklenko Yu.A., Zotov I.V., Kiselyov V.M., Tarasov V.V. New generation testbeds for onboard control systems adjustment

The problems of testbed adjustment of onboard control systems are outlined. The featured properties of a testbeds for onboard control algorithms debugging produced and applied by “Aviaavtomatika” design and development office of Pribor JSC (Kursk, Russia) are discussed.

Keywords: onboard control systems, testbeds for onboard control algorithms debugging.

Andreev M.Ya., Kaliushko V.I., Kozlovsky S.V., et al. Adding intelligence to hydroacoustic equipoment of a surface ship

Improved intelligence for hydroacoustic equipment of a surface ship based on environment analysis and recommendations development subsystem is presented.

Keywords: hydroacoustic equipment, intelligence, databases, development scenario.

Belyakov V.V., Golovin A.V., Vasiliev V.K., et al. A device for explosive traces detection on human fingers and documents

The device, based on ion mobility spectroscopy technique, for detection of ultra small (trace) explosive concentration on human fingers and documents is described. Various methods of surface heating for increasing detection sensitivity are analyzed. The sampling unit based on the application of a flash gas-discharge lamp for heating is designed. Experimental data on the detection of 3 explosive types are included.

Keywords: ion mobility spectroscopy, trace detection, surface heating with a flash gas-discharge lamp, explosives.

Kodentsev D.A. Optomechanical measuring system for monitoring linear and angular dimensions

The paper discusses optical methods for linear and angular measurements based on new information technologies.

Keywords: measuring system, monitoring, microscope, scanner, quality, correspondence, AutoCAD.

Didenko V.I., Teplovodsky A.V., Ivanov A.V. The accuracy of measuring device modeling

A new metrological approach to the analysis of modeling accuracy concepts is offered. Its idea is the propagation of maximum possible experience accumulated in metrology over modeling. The paper discusses the concepts of modeling adequacy, accuracy, and error and offers the classifications of modeling types and errors. With case studies of voltage-reference diodes and delta-sigma modulator modeling, it shows how the concepts introduced contribute to modeling adequacy improvement.