On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions
The article discusses the implementation of a differential pushpull measurement method using a phase interpolator and a phase meter in an acousto-optical (AO) heterodyne laser interferometer of displacements (in future –a laser interferometer). To reduce the noise level in the measuring signal, a...
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| Format: | Article |
| Language: | English |
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Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2020-06-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/3%20(171)/92-98%20%D0%9B%D0%B5%D1%83%D0%BD%20%D0%95.%20%D0%92..pdf |
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| _version_ | 1832573939267665920 |
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| author | E. V. Leun |
| author_facet | E. V. Leun |
| author_sort | E. V. Leun |
| collection | DOAJ |
| description | The article discusses the implementation of a differential pushpull measurement method using a phase interpolator and a phase
meter in an acousto-optical (AO) heterodyne laser interferometer
of displacements (in future –a laser interferometer). To reduce the
noise level in the measuring signal, a phase locked loop system
with a small jitter has been introduced. In the first measure at the
beginning of the object’s movement due to the high accuracy of
the phase meter, so-called «slow precise» measurements with high
resolution, up to ≈λ/10000, where λ is the wavelength of the laser
radiation. For high-speed object motion the clock of «fast rough»
measurements is used when the high-speed phase interpolator is
running and the phase meter is locked. This push-pull principle
of operation of the laser interferometer improves the dynamic and
metrological parameters of object motion measurements. |
| format | Article |
| id | doaj-art-efec6f35bcb94c2584fcc7871204c7bc |
| institution | Kabale University |
| issn | 1813-8225 2541-7541 |
| language | English |
| publishDate | 2020-06-01 |
| publisher | Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education |
| record_format | Article |
| series | Омский научный вестник |
| spelling | doaj-art-efec6f35bcb94c2584fcc7871204c7bc2025-02-02T02:14:54ZengOmsk State Technical University, Federal State Autonoumos Educational Institution of Higher EducationОмский научный вестник1813-82252541-75412020-06-013 (171)929810.25206/1813-8225-2020-171-92-98On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motionsE. V. Leun0Lavochkin AssociationThe article discusses the implementation of a differential pushpull measurement method using a phase interpolator and a phase meter in an acousto-optical (AO) heterodyne laser interferometer of displacements (in future –a laser interferometer). To reduce the noise level in the measuring signal, a phase locked loop system with a small jitter has been introduced. In the first measure at the beginning of the object’s movement due to the high accuracy of the phase meter, so-called «slow precise» measurements with high resolution, up to ≈λ/10000, where λ is the wavelength of the laser radiation. For high-speed object motion the clock of «fast rough» measurements is used when the high-speed phase interpolator is running and the phase meter is locked. This push-pull principle of operation of the laser interferometer improves the dynamic and metrological parameters of object motion measurements.https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/3%20(171)/92-98%20%D0%9B%D0%B5%D1%83%D0%BD%20%D0%95.%20%D0%92..pdflaser interferometeradaptive interferometerphase shiftphase interpolatorphase metera phase locked loopsignal noisejitter |
| spellingShingle | E. V. Leun On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions Омский научный вестник laser interferometer adaptive interferometer phase shift phase interpolator phase meter a phase locked loop signal noise jitter |
| title | On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions |
| title_full | On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions |
| title_fullStr | On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions |
| title_full_unstemmed | On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions |
| title_short | On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions |
| title_sort | on construction of laser acousto optical heterodyne interferometers with push pull measurement of product motions |
| topic | laser interferometer adaptive interferometer phase shift phase interpolator phase meter a phase locked loop signal noise jitter |
| url | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/3%20(171)/92-98%20%D0%9B%D0%B5%D1%83%D0%BD%20%D0%95.%20%D0%92..pdf |
| work_keys_str_mv | AT evleun onconstructionoflaseracoustoopticalheterodyneinterferometerswithpushpullmeasurementofproductmotions |