The measurement methods of beat-wave interference fringe fraction for two-wavelenth beat-wave length interferometry

[in Chinese]; [in Chinese]

Journals >Acta Optica Sinica >Volume 13 >Issue 3 >Page 262 > Article

Acta Optica Sinica
Vol. 13, Issue 3, 262 (1993)

The measurement methods of beat-wave interference fringe fraction for two-wavelenth beat-wave length interferometry

[in Chinese]¹ and [in Chinese]²

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¹[in Chinese]

²[in Chinese]

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[in Chinese], [in Chinese]. The measurement methods of beat-wave interference fringe fraction for two-wavelenth beat-wave length interferometry[J]. Acta Optica Sinica, 1993, 13(3): 262 Copy Citation Text

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Abstract

The several measurement methods of beat-wave interference fringe fraction used in beat-wave interferometer are described. The principle of the beat-wave phase-locked type of aiming technique is proposed. The three principle schemes of the beat-wave interferometer are presented. The measurement accuracy and some other problems are discussed and compared.

Keywords

beat-wave interferometer excess fractions large length measurements two wavelength interferometry

[in Chinese], [in Chinese]. The measurement methods of beat-wave interference fringe fraction for two-wavelenth beat-wave length interferometry[J]. Acta Optica Sinica, 1993, 13(3): 262

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