Lateral and rotational displacement measurement using dual mode reflector and multizeros optical beam

Author

Yada, Yuichiro ; Kurihara, Toru ; Ando, Shigeru

Author_Institution

Dept. of Inf. Sci. & Technol., Univ. of Tokyo, Tokyo, Japan

fYear

2012

fDate

20-23 Aug. 2012

Firstpage

1934

Lastpage

1938

Abstract

We developed a novel method for displacement measurement of distant target. Both lateral and rotational displacements can be measured with high accuracy using dual mode reflector and a multizeros optical beam. Proposed structure enables us to dissolve the requirement of electrical power supply on a target. Experimental results show that the precision of lateral displacement is approximately 20μm and that of rotational displacement is higher than 0.001 deg at 4.1m distance.

Keywords

beams (structures); condition monitoring; displacement measurement; laser beam applications; optical elements; structural engineering; Laguerre-Gaussian beam; distant target; dual mode reflector; electrical power supply; lateral displacement measurement; multizeros optical beam; rotational displacement measurement; structural health monitoring; Displacement measurement; Laser beams; Measurement by laser beam; Mirrors; Optical beams; Rotation measurement; Sensors; Laguerre-Gaussian beam; deformation sensing; optical vortex;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual Conference (SICE), 2012 Proceedings of

Conference_Location

Akita

ISSN

pending

Print_ISBN

978-1-4673-2259-1

Type

conf

Filename

6318327