The Nondestructive Evaluation Method for the Optical Glass Lens by Resonant Ultrasound Spectroscopy

Abstract:

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In this research, we proposed nondestructive evaluation method of a flaw in an optical glass lens by resonant ultrasound spectroscopy (RUS). An optical glass lens is used for improving signal coupling between fibers, emitters and detectors. The shape of optical glass lens is an aspherical lens with 3mm in length and 6.35 mm in diameter. For nondestructive evaluation of an aspherical lens, we made of the measuring system by RUS. For flaw evaluation by the RUS to verify the data obtained from the experiment, we carried out simulation by explicit finite elements method, and compared the experimental results with simulation results. Also, we compared the resonant frequencies of specimens with some defect with those of acceptable specimens. The histogram drawn from these data and the available resonance mode surveyed were used to classify the acceptable specimens in the plant.

Info:

Periodical:

Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

Pages:

1435-1438

DOI:

10.4028/www.scientific.net/KEM.321-323.1435

Citation:

K. S. Lee et al., "The Nondestructive Evaluation Method for the Optical Glass Lens by Resonant Ultrasound Spectroscopy ", Key Engineering Materials, Vols. 321-323, pp. 1435-1438, 2006

Online since:

October 2006

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Price:

$35.00

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