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Optical technique for porosity detection inside valve body spool bores down to 5 mm diameter

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3 Author(s)
Kulkarni, O.P. ; Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA ; Islam, M.N. ; Terry, Fred L.

We inspect inner surfaces of valve body spool bores down to 5 mm diameter for porosity defects, using an optical probe with ∼50 µm lateral resolution. The probe can also distinguish porosity from bump-type defects.

Published in:

Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on

Date of Conference:

16-21 May 2010