Optical integrated testing instrument for pipe interior-parameter measurement and inspection

Jian Zhang; Bo Liu; Liying Wu; Liankui Sun; Hai Gong

doi:10.1117/12.230401

19 January 1996 Optical integrated testing instrument for pipe interior parameter measurement and inspection

Jian Zhang, Bo Liu, Liying Wu, Liankui Sun, Hai Gong

Proceedings Volume 2599, Three-Dimensional and Unconventional Imaging for Industrial Inspection and Metrology; (1996) https://doi.org/10.1117/12.230401
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

An instrument for fine-machined pipe (longer than 10 m) inspection and measurement is introduced in this paper. The non-contact interior wall roughness measurement system based on light reflecting and scattering theory has a wide range (Ra from 0.012 micrometer to 4 micrometer) and is suitable for different types of machined surface measurements. The interior diameter is measured by a pair of gratings which produce Moire fringes. The accuracy of which is better than 5 micrometer for a pipe diameter greater than 100 mm. A CCD video camera inspection system is also installed on the measuring head to check the interior wall quality.

Citation Download Citation

Jian Zhang, Bo Liu, Liying Wu, Liankui Sun, and Hai Gong "Optical integrated testing instrument for pipe interior parameter measurement and inspection", Proc. SPIE 2599, Three-Dimensional and Unconventional Imaging for Industrial Inspection and Metrology, (19 January 1996); https://doi.org/10.1117/12.230401

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