2019, Kazieva, T. V., Gubskiy, K. L., Kuznetsov, A. P., Reshetov, V. N., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Кузнецов, Андрей Петрович, Решетов, Владимир Николаевич

© 2019 Optical Society of America.A three-coordinate heterodyne laser interferometer has been developed to measure the displacement of the probe microscope scanner with a subnanometer resolution that provides traceability of measurements to the standard of meter through the wavelength of a stabilized He–Ne laser. Main sources of errors are investigated, and their influence is minimized so that the resulting measurement uncertainty of the system does not exceed 0.2 nm, and the resolution is 0.01 nm. The investigation of metrological characteristics of the three-coordinate interferometer was carried out with a scanning probe microscopy (SPM) NanoScan-3D using TGZ-type calibration gratings. The values measured with SPM fell within the 95% confidence interval given by Physikalisch-Technische Bundesanstalt (PTB) (Germany). SPM equipped with a laser interferometer was used to measure the characteristics of dynamic etalons of geometric dimensions.

2019, Kazieva, T. V., Gubskii, K. L., Kuznetsov, A. P., Glukhov, R. D., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Кузнецов, Андрей Петрович

© 2019, Pleiades Publishing, Ltd.Abstract: In this paper, we describe a portable system for measuring the indenter velocity in hardness meters implemented according to the Leeb method. The developed system is a fiber interferometer, in which a radiation source is a semiconductor laser with a wavelength of 1550 nm. The presented experimental results confirm the ability of the system to measure indenter velocities with an uncertainty of 0.001 m/s, which satisfies the requirements of the standards for this method of measuring hardness.

2020, Ananev, S. Yu., Grishin, L. I., Kazieva, T. V., Gubskiy, K. L., Kuznetsov, A. P., Tishchenko, I. Yu., Glukhov, R. D., Pirog, V. A., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Кузнецов, Андрей Петрович, Тищенко, Илья Юрьевич, Пирог, Владимир Андреевич

© Published under licence by IOP Publishing Ltd.The paper proposes a method for combining photon Doppler velocimetry and a system of speed interferometers for any reflective systems, which allows one to study the behavior of transparent media under the action of powerful shock waves without the use of additional reflective surfaces. The paper presents the results of an experiment on the propagation of a shock wave in water. In this experiment, water was an absorber; however, the proposed method would also work provided that the test material is transparent and provides reflection.

2021, Kazieva, T. V., Gubskiy, K. L., Kuznetsov, A. P., Pirog, V. A., Tishchenko, I. Y., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Кузнецов, Андрей Петрович, Пирог, Владимир Андреевич, Тищенко, Илья Юрьевич

© Published under licence by IOP Publishing Ltd.When processing experimental data with systems such as velocity interferometer system for any reflector (VISAR), periodic measurement uncertainty arises. The appearance of its uncertainty is investigated and computer modeling of signal processing with random noise is carried out. Analytical dependences of the error value on the signal-To-noise ratio and signal phase are obtained. Methods of reducing this error are considered.

2021, Kazieva, T. V., Gubskiy, K. L., Tischenko, I. Yu., Glukhov, R. D., Kuznetsov, A. P., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Тищенко, Илья Юрьевич, Кузнецов, Андрей Петрович

© 2021 Author(s).In this article, we propose a method for improving accuracy in calibrating Leeb hardness testers using fiber interferometric systems. The calibration system is implemented using the photonic Doppler velocimetry technique. This paper provides estimates of the measurement uncertainty arising in the calibration system and describes a method for improving accuracy, which takes into account the signal-to-noise ratio, sampling rate, and processing parameters.

2022, Kazieva, T. V., Tishchenko, I. Y., Reshetov, V. N., Gubskiy, K. L., Pirog, V. A., Казиева, Татьяна Вадимовна, Тищенко, Илья Юрьевич, Решетов, Владимир Николаевич, Губский, Константин Леонидович, Пирог, Владимир Андреевич

© 2022, Pleiades Publishing, Ltd.Abstract: The interference method for determining the velocity of objects using direct optical heterodyning (photonic Doppler velocimetry) has become widespread due to the ease of setting up the fiber-optic system, the unambiguous results that it produces, and the wide possibilities for varying the measurement accuracy and temporal resolution. The accuracy of velocity measurements can be fractions of a percent, but there are a number of factors that interfere with this. For example, a change in the velocity of an object, that is, its movement with acceleration, leads to a broadening of the signal spectrum with an increase in the working time window and, as a result, to a decrease, rather than an increase, in the accuracy of measuring the velocity. In this letter, a method is proposed that allows one to compensate for the effect of acceleration on the accuracy of velocity measurement. The proposed model for processing the registered signals makes it possible to determine both the acceleration and the velocity of the object. The applied algorithm made it possible to avoid the expansion of the spectrum with an increase in the time window and to improve the accuracy of measuring the velocity of a freely falling body by an order of magnitude.

2020, Pirog, V. A., Gubskiy, K. L., Tishenko, I. Yu., Kazieva, T. V., Пирог, Владимир Андреевич, Губский, Константин Леонидович, Тищенко, Илья Юрьевич, Казиева, Татьяна Вадимовна

© Published under licence by IOP Publishing Ltd.The first result of the developed hybrid system for measuring the mass velocity of a matter is presented in the article. It combines two methods, VISAR and PDV, to compensate for their shortcomings. The scheme of the measuring system and the results of the laboratory experiment are shown.

2021, Gogolinskii, K., Syasko, V., Umanskii, A., Kazieva, T., Gubskiy, K., Kuznetsov, A., Gluhov, R., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Кузнецов, Андрей Петрович

© 2020 Elsevier LtdThe article aims to solve the problem of measuring the impactor velocity for dynamic hardness testers according to the Leeb, as one of the key parameters to ensure the accuracy and reliability of hardness measurements by this method. The gravitational method of impactor acceleration, used in calibration machines, and spring acceleration, typical for hardness testers, have been studied. Various technical solutions for velocity calibration are analyzed. Accurate, easy to implement, compact and inexpensive device based on fiber optic and allows monitoring the dynamics of the object without the use of additional reflective elements is developed. This system suitable for calibration or verification of dynamic hardness testers and calibration machines. The system is based on a laser interferometer in which the direct optical heterodyning of Doppler signals (Photonic Doppler Velocimetry) is applied. The maximum permissible error of the system is determined by the requirements for the metrological characteristics of the Leeb hardness calibration machine and is 0.0025 m/s at a speed of ~2 m/s. The possibility to measure the impact body velocity with an error of 0.2·10-3 m/s is confirmed.

2022, Губский, К. Л., Казиева, Т. В., Симаков, А. Б., Казиева, Татьяна Вадимовна, Симаков, Андрей Борисович, Губский, Константин Леонидович

Полезная модель относится к области обеспечения электромагнитной безопасности и может быть использована для непрерывного контроля получаемой дозы СВЧ-энергии на рабочих местах и в быту. Технический результат заявляемой полезной модели направлен на устранение шумов, связанных с наложением GSM-сигналов на принимаемые (дозиметрические) сигналы СВЧ. Устройство включает первый и второй материал, имитирующие биоткань, четыре идентичные измерительные детекторы, измеряющие мощность СВЧ электромагнитного излучения, устройство обработки данных и управления, соединенное электрическими цепями с каждым из измерительных детекторов, корпус из прозрачного для СВЧ ЭМИ, приемник сигналов системы глобального позиционирования GPS и приемник сигналов мобильной сотовой связи GSM, первый и второй контроллер, генератор тактовых сигналов и устройство памяти. В результате введения в систему синхронизатора уровень шумов в системе уменьшается, поскольку поочередное включение передачи данных по GSM-каналу и детекторов СВЧ-излучения позволяет предотвратить наложение одних сигналов на другие.

2020, Kazieva, T. V., Gubskiy, K. L., Reshetov, V. N., Kuznetsov, A. P., Казиева, Татьяна Вадимовна, Губский, Константин Леонидович, Решетов, Владимир Николаевич, Кузнецов, Андрей Петрович

© Published under licence by IOP Publishing Ltd.The paper describes a method for measuring the surface area function of the tips of the probes of nanohardness testers using a laser interferometer. The features of the developed system provide traceability of measurements to the standard of length through the wavelength of a stabilized source of laser radiation. In addition, it is possible to measure the parameters of the probe tip without removing it from the nanohardness tester, which allows the device not to be taken out of working condition and provides unambiguous measurements.