Phase-Measuring Profilometry in Non-Constant Environmental Light

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Journals >Acta Optica Sinica >Volume 20 >Issue 5 >Page 617 > Article

Acta Optica Sinica
Vol. 20, Issue 5, 617 (2000)

Phase-Measuring Profilometry in Non-Constant Environmental Light

[in Chinese], [in Chinese], [in Chinese], and [in Chinese]

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[in Chinese]

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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Phase-Measuring Profilometry in Non-Constant Environmental Light[J]. Acta Optica Sinica, 2000, 20(5): 617 Copy Citation Text

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Abstract

The accuracy of phase-measuring profilometry (PMP) is greatly influenced by the environmental light,especially in the outside of the room.The error caused by the change of the environmental light is analyzed.A method to calibrate the grey scale of the fringe pattern acquired by the CCD camera is presented.By using the method,the error is greatly restrained.

Keywords

environmental light grey scale calibrate.phase-measuring profilometry

[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Phase-Measuring Profilometry in Non-Constant Environmental Light[J]. Acta Optica Sinica, 2000, 20(5): 617

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