Article 14215

Title of the article

LAZER MEASURING SYSTEMS WITH SPACE-TIME SCAN OF INTERFERENCE FIELD

Authors

Kapezin Sergey Viktorovich, Candidate of engineering sciences, associate professor, sub-department of instrument engineering, Penza State University (40 Krasnaya street, Penza, Russia), priborostroenie@bk.ru
Bazykin Sergey Nikolaevich, Candidate of engineering sciences, associate professor, sub-department of instrument engineering, Penza State University (40 Krasnaya street, Penza, Russia), cbazykin@yandex.ru
Bazykina Nelli Aleksandrovna, Candidate of engineering sciences, associate professor, sub-department of theoretical and applied mechanics and graphics, Penza State University (40 Krasnaya street, Penza, Russia), cbazykin@yandex.ru
Samokhina Kristina Sergeevna, Postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia), gsm@pnzgu.ru

Index UDK

531.715.1

Abstract

Background. The research object is lazer information-measuring systems with space-time scan of an interference field. The research subject is the processes of in-terference fringe conversion in a window of a linear photodiode array as a result of object’s mobile reflector shift. The aim of the work is to determine the possibility of object’s linear shift measurement using a phase shift of lightwaves by a space-time scan of an interference field.
Materials and methods. The research of interference fringe conversion in a win-dow of a linear photodiode array was carried out through using a method of har-monic analysis with the help of Fourier transforms.
Results. The authors considered a mechanism of mobile object’s linear shifts measuring using lazer heterodyneinterferometers. It is shown that application of two-frequency optical radiation sources allows to simplify an optical measuring scheme. The article describes a scheme of a lazer heterodyne interference sensor of linear shifts that uses a monofrequent source of optical radiation.
Conclusions. High-precision measurements with discreteness of less than one mi-crometer and distance of several meters is possible only if using lazer measuring sys-tems. At the same time, building of optical schemes depends on the used source of optical radiation. The article describes the analysis of interferometers’ optical schemes formation using various sources of optical radiation. The study reveals a method of measuring a phase shift of lightwaves by means of cyclic scanning of an interference fringe by a narrow diffraction slit.

Key words

lazer measuring systems, time-space scan, interference field, interference fringe, phase shift of lightwaves.

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References

1. Kapezin S. V. Povyshenie tochnosti lazernykh interferentsionnykh akustoopticheskikh izmeritel'nykh sistem metodom avtomaticheskoy kompensatsii: avtoref. dis. k-ta. tekhn. nauk [Precision improvement of lazer interference acoustooptical measuring systems by the automatic compensation method: author’s abstract of dissertation to apply for the degree of the candidate of engineering sciences]. Moscow, 1984, 28 p.
2. Kashcheev N. A., Kuznetsov Yu. L., Piskaev K. Yu., Tsurikov Yu. A. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Tekhnicheskie nauki [University proceedings. Volga region. Engineering sciences]. 2012, no. 1 (21), pp. 151–159.
3. Bazykin S. N. Informatsionno-izmeritel'nye sistemy na osnove interferometrov: monogr. [Information-measuring systems on the basis of interferometers: monograph]. Penza: Izd-vo PGU, 2014, 132 p.
4. Kapezin S. V., Bazykin S. N., Bazykina N. A. Datchiki i sistemy [Sensors and systems]. 2005, no. 8, pp. 15–16.

 

Дата создания: 02.10.2015 15:19
Дата обновления: 05.10.2015 14:37