Instruments and methods of investigation

Methods of Measuring Small Phase Difference Changes in Interference Devices

A review is presented of the present status of the technology of interference measurements of small changes of certain physical quantities. The capability limits of measurements with the aid of interference, imposed by diffraction and by noise in the radiation source and receiver, are analyzed. The most effective visual and photometric methods of measuring phase differences of interfering beams are described. The modulation method, in which a phase difference change of (10$^{-5}$--10$^{-6}$)·2$\pi$ can be detected, and the phase method used in automatic interferometers are considered in greater detail.

Fulltext pdf (2.1 MB)
Fulltext is also available at DOI: 10.1070/PU1972v015n02ABEH004966
PACS: 07.60.Ly, 06.30.Bp, 85.60.−q (all)
DOI: 10.1070/PU1972v015n02ABEH004966
Citation: Kartashev A I, Etsin I Sh "Methods of Measuring Small Phase Difference Changes in Interference Devices" Sov. Phys. Usp. 15 232–250 (1972)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Карташев А И, Эцин И Ш «Методы измерения малых изменений разности фаз в интерференционных устройствах» УФН 106 687–721 (1972); DOI: 10.3367/UFNr.0106.197204h.0687

© 1918–2024 Uspekhi Fizicheskikh Nauk
Email: Editorial office contacts About the journal Terms and conditions