An optical sensor for local strain measuring of an object by means of a speckle correlation method

0389636 - FZÚ 2013 RIV CZ eng J - Článek v odborném periodiku
Horváth, P. - Šmíd, Petr - Hrabovský, M. - Hamarová, Ivana
An optical sensor for local strain measuring of an object by means of a speckle correlation method.
Chemické listy. Roč. 106, s3 (2012), s. 425-427. ISSN 0009-2770. E-ISSN 1213-7103
Grant CEP: GA AV ČR KAN301370701
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: non-contact measurement * strain * speckle * speckle correlation
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 0.453, rok: 2012

The paper presents design of an optical sensor and its experimental verification for non-contact detection and quantitative evaluations of a local strain of a rubber specimen by a speckle correlation method. The presented optical method gives results comparable with the ones obtained by means of electromechanical method using electronic position transducer. Non-contact and non-destructive measuring is one of the sensor’s advantages. Next sensitivity and accuracy of measurement is defined through geometrical and optical parameters of the designed sensor and measurement runs in quasi-real time.
Trvalý link: http://hdl.handle.net/11104/0218498