|Sensors and Systems Journal, No. 12, December 2006 (Contents and Abstracts)|
Macheret Yu. Ya., Berikashvili V. Sh., Vasilenko E. V., Sokolov V. G. Broadband impulse radar for glacier probing with an optic timing channel and digital signal processing
The paper describes a radar and a radio probing methodology for cold, subpolar, and warm glacier up to 300 m thick. The examples of radarograms for Antarctica and Kamchatka are adduced.
Zakharevich A. P., Sapozhnikov G. A., Bogoslovsky S. V. The comparison of pressure measurement methods using quartz membrane
Possible approaches to the implementation of high-precision pressure transducers based on membrane circuit and SAW/VAW sensing elements.
Kolomiets L. N., Badeeva E. A., Murashkina T. I., Pivkin A. G. Differential signal transformation in reflective fiber-optic pressure transducers
A new method of differential signal conversion in reflective fiber-optic pressure transducers is proposed. The method’s feature is that the first measuring channel senses the change of the displacement membrane’s central part, while the second channel records the change of the inclination of membrane’s peripheral part.
Balakin S. V., Sterligov D. V. Simulation results of a fuel level meter for liquid-propellant rockets
Comparative analysis of mathematical modeling results of a level meter for fuel consumption control systems of liquid-propellant rockets is undertaken. The results of analytical modeling and computer simulation are presented. The opportunities of software implementation of corresponding algorithms are compared.
Goryachev V. Ya., Volchikhin V. I. Design values and metrological characteristics of phase transducers with a traveling magnetic field
The paper examines the effects of the discreteness of the distribution of data rule’s magnetizing force, the change of air gap’s geometry, and the accuracy of data rule’s magnetic shunt and magnetic circuit fabrication on the error of phase transducers of linear and angular displacements with a traveling magnetic field.
Borovskikh L. P. A priori information usage for improving measurement accuracy for the parameters of the objects with multi-element equivalent circuit
The paper discusses the principal opportunity of using a priori information in the form of functional relationships between the measurands for improving the accuracy of the a.c. objects’ parameter estimation with the assumption that the replacement circuit is a multi-element one-port. An algorithm of simultaneous a priori and a posteriori information processing intended for virtual impedance sensors is offered.
Tran Sinh Bien, Gubler G. B. The errors of voltage–to–frequency converters based on second-order S∆ modulation
Comparative study of filters used in industrial Σ∆ ADCs and the sinc filters based on weighing windows never used before for frequency/code transformation, including the authors’ filter is undertaken.
Bobyliov D. A. Power noise rejection in impedance analyzers with a wide dynamic range of test signal
A reference signal synthesis method for phase-sensitive converters of impedance meters with high level of power noise rejection is discussed.
Zelentsov Yu. A., Zelentsov V. Yu. The influence of IC topology on sensor stability under unbalanced bridge circuits
The influence of IC topology on the metal-film sensor stability under unbalanced bridge circuits is examined. The optimized IC topology ensuring maximum circuit symmetry is presented.
Soborover E. I., Pashinin A. V. A planar waveguide chemical sensor with a resonance light lead-in
The paper outlines a planar waveguide chemical sensor (PWCS) with a thin polymethylmetacrylate waveguide placed on the quartz substrate with a brilliant green-modified polydimethilsiloxane sensing layer. A linear relationship between the sensor effect for ammonia and the waveguide thickness is obtained. This shows the resonant type of light lead-in through the full-reflecting air layer from the substrate whose material has higher optical density than the waveguide’s. This allows to increase dramatically the variety of materials that can be used in new PWCS and optic sensor platforms design.
Volkov S. P., Nikonenko V. A. Measurement assurance of non-contact temperature measurement tools
The paper reviews reference equipment providing the reproduction of temperature measurement unit based on MTSh-90 in compliance with National Temperature Measurement Chain for temperature meters (GOST 8.558-93 National Standard of Russia, Part 3) and optical thermometers in –40…2500°C temperature range.
Frunze A. V. DIELTEST pyrometers
DIELTEST Series pyrometers, their operation features and advantages are discussed. Key performance data are presented. Operating conditions for various purpose models are reviewed.
Schumacher B. Coriolis mass flowmeters in products batching, dispensing and mixing
Basic design and technological features of straight-tube Coriolis mass flowmeters manufactured by KROHNE GmbH are presented; industrial application examples are included.
Rabochiy A. A. The conversion of sensors’ parameters into frequency signal
The paper analyzes sensitivity functions of the oscillating circuit for the frequency conversion of R,C-sensors’ parameters into an information signal. The change of sensitivity functions with respect to period and frequency under independent changes of sensors’ parameters is considered. The paper shows that the linear change of sensitivity can be obtained by using resistance converter if the information signal is the period of generated oscillations.
Sorokin G. A., Rogov A. E. Position control system sensors in low-speed follow-up motors
The paper briefly overviews the variants of actuator position control in low-speed follow-up motors intended for orientating solar units, radio telescopes and antennas tracking in-orbit satellites. The characteristics of prototype models of position sensors developed by the Scientific Research Institute of Space Instrument-Making.
Zlotin G. N., Belov A. V., Zakharov A. E., et al. Measuring systems for transient behavior research the transitional conditions work of automotive combustion engines
The research of automotive engine’s transient behavior required to create a control and monitoring system. To solve the problem, the original devices were developed for measuring the velocities of gear torque increase and choker opening.
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