Sensors and Systems Journal, No. 11, November 2009 (Contents and Abstracts)

Belkov I. G., Malyshev I. N., Nikulin S. M., Simakov S. V., Utkin V. N. The determination of microwave resistive electronic components parameters

The method for the determination of circuit models elements for resistive electronic components based on measurement results of direct current resistance and wave scattering parameters in strip transmission lines is described.

Keywords: microelectronic resistive components, contact device, wave scattering parameters, strip lines, impedances, circuit models, inherent parameters, vector circuit analyzer.

Melnikov V. I. The acoustic waveguide signaling devices for measuring of liquid level

The action principle, block diagram, design of waveguide signaling devices for measuring of liquids level, and also their main technical characteristics, application scope and fault diagnostics were considered. The advantages of these signaling devices such as universality, wide range of application conditions and autonomous fault diagnostics were indicated.

Keywords: liquid level signaling device, acoustic waveguide, piezoelectric transducer, high temperature and pressure.

Andriyanov A. V., Gilmanov A. M., Kondratyev A. A., Smekalov A. I. New instruments for selective measurement of electromagnetic signals and fields

Selective voltmeters V6-17 and V6-18 developed by authors, and features of analog and digital signal processing in them are described. The possibility of realization of digital detectors of average, peak and quasi-peak values at the maximal bandpass up to 10 MHz is shown.

Keywords: selective voltmeter, electromagnetic signal, frequency, spectrum, detector, inaccuracy, digital receiver, preselector, frequency converter.

Vavilov V. D., Vavilov I. V., Jakovlev A. A. Mathematical model of a microsystem gyroscope with inverted rotor suspension

The angular velocity sensor with rotating rotor was described.

Keywords: silicon monocrystal, microsystem, suspension, Resal axes, accuracy.

Vavilov V. D., Vavilov I. V., Dolgov A. N. Robust control of a microsystem gyroscope

The example of robust microgyroscope with the inverted rotor was examined.

Keywords: microgyroscope, rotor, Coriolis effect, robustness, stability, accuracy.

Sukhanov S. V. Laser gyro output error compensation

Laser gyro error sources were studied. The gyro dither drive noise ejection algorithm was developed in order to minimize random drift. A generalized mathematical model of the laser gyro output drift was developed. On the basis of this model the bias drift compensation algorithm was synthesized that enables to improve the laser gyro accuracy performance.

Keywords: laser gyro, random drift, dither drive noise ejection, bias drift, temperature calibration.

Guskov A. A. Design method for magnetometric inclinometer

The design method for magnetometric inclinometer with three flux gates and three linear accelerometers on the platform of single-axis stabilizer was presented. The analysis of measurement accuracy of zenith and azimuth angles was carried out.

Keywords: inclinometry, inclinometer, single-axis stabilizer, working algorithm, zenith angle, azimuth angle, inaccuracy.

Kanakov V. A., Gorda V. V. The modification of correlation method for positioning of signal sources with large base of passive sensors

The modification of correlation method for positioning of signal sources with large base of passive sensors was considered. This algorithm allows to improve such characteristics of positioning systems using a range-difference scheme, as resolving power and reliability of results.

Keywords: passive sensor, location, correlation method, base, source.

Afanasjev A. V., Moskvichev A. N., Moskvichev A. A., Odnosevtcev V. A., Orlov I. J. Low frequency dielectric spectroscopy of conducting matters measurement system

The measurement system for measuring of active and reactive impedance components of dielectric materials was developed. New continuous signals representation algorithm based on n-th order spline was developed and used. The experimental results are presented.

Keywords: system, low frequency spectroscopy, electrophysical parameters.

Orlov I. J., Afanasjev A. V., Nikiforov I. A. Precision infrared radiometer

New microprocessor radiometer with two channel diaphragmed optical system for precision measurement in infrared range (2…25 microns) has been developed. The radiometer measures target temperatures ranging from +10 to 500°C with measuring accuracy ≤0,5 % and viewing angle 1:50. Results of radiometer usage for medico-biological research are presented.

Keywords: radiometer, infrared radiation, processor, adaptation, thermal compensation.

Kazakov V. V. Ultrasonic phase meter of vibrations for vibration diagnostics purposes

Special functional features of contactless ultrasonic phase meters of vibrations are considered. The scheme of the measuring instrument based on controlled digital phase-shifter, ensuring high efficiency and noise-immunity of measurements for investigations of vibrations fields and geometry distortions of different objects if presented.

Key words: contactless measurements, ultrasonic vibration meter, vibration fileds.

Gurevitch M. L., Cheremohin A. V. New measuring instruments for metrology equipment of electrical and radio laboratories, scientific and production organizations and metrology centers

Technical characteristics and special application particularities of new measuring instruments are described. These instruments are intended for equipping of metrological electrical and radio laboratories, scientific production organizations, which carry out the verification of voltage and current meters in frequency range up to 1500 MHz at voltage level up to 1000 V and current level up to 1000 A.

Key words: measurement instrument, working standard, voltmeter, converter, verification, frequency range, current, voltage, metrological performance.

Akulov V. V. Automatic measurement systems for testing user equipment with usage of GLONASS/GPS signals receiver-comparators

Design principles and technical specifications of an automatic measuring complex providing metrological support of a broad range of radio- and electric measuring instruments with a high level of autonomy, based on modern technology, including using of the GLONASS/GPS signals receiver-comparators are considered with an example of the testing system of frequency meters and wattmeters.

Key words: automatic measuring complex, measuring instrument, metrological autonomy, satellite radio navigation system.

Parfenov G. A. Equipment for synchronization of spatially distributed clocks by low-frequency time and frequency reference signals

This paper describes the format of time and frequency reference signals which are transmitted by radio stations RBU and RTZ of governmental time and frequency service. Main technical characteristics of new domestic equipment for clock synchronization based on these signals are also presented.

Key words: time synchronization, time code, clock radio, time and frequency reference signals, UTC (SU).

Khilov V. P., Khilov V. V. Metrological aspects of non-ionizing radiation control

The analysis of domestic and foreign regulatory framework regarding to allowable levels of non-ionizing radiation was performed, on the base of which the main requirements to measuring instrumentation concerning non-ionizing radiation control were formulated. A brief description of P3-31 electromagnetic radiation meter, corresponding to the specified requirements, was provided.

Key words: non-ionizing radiation, maximum allowable levels of electromagnetic fields, measuring instruments for electromagnetic field parameters.

Anzev G. V., Bogoslovsky S. V., Sapozhnikov G. A. New approach to the design of contactless sensors based on surface acoustic waves (SAW)

New approach to the design of contactless passive sensors based on surface acoustic waves and dispersive delay lines is proposed which ensures high noise immunity and accuracy of contactless measurements. Results of simulations concerning diaphragm-type pressure sensors are presented.

Key words: pressure sensors, passive, dispersive delay lines.