Self-referenced interferometer for cylindrical surfaces

0450639 - ÚPT 2016 RIV US eng J - Článek v odborném periodiku
Šarbort, Martin - Řeřucha, Šimon - Holá, Miroslava - Buchta, Zdeněk - Lazar, Josef
Self-referenced interferometer for cylindrical surfaces.
Applied Optics. Roč. 54, č. 33 (2015), s. 9930-9938. ISSN 1559-128X. E-ISSN 2155-3165
Grant CEP: GA MŠMT ED0017/01/01; GA ČR GA15-18430S; GA MŠMT(CZ) LO1212; GA TA ČR TE01020233
Institucionální podpora: RVO:68081731
Klíčová slova: metrological instrumentation * interferometric imaging * interferometry * surface measurements * optical inspection
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 1.598, rok: 2015

We present a new interferometric method for shape measurement of hollow cylindrical tubes. We propose a simple and robust self-referenced interferometer where the reference and object waves are represented by the central and peripheral parts, respectively, of the conical wave generated by a single axicon lens. The interferogram detected by a digital camera is characterized by a closed-fringe pattern with a circular carrier. The interference phase is demodulated using spatial synchronous detection. The capabilities of the interferometer are experimentally tested for various hollow cylindrical tubes with lengths up to 600 mm.
Trvalý link: http://hdl.handle.net/11104/0251998