A relative-story displacement sensor resolving the angular error problem

Author

Matsuya, Iwao ; Sato, Maya ; Kondo, Hideaki ; Iba, Miroku ; Kanekawa, Kiyoshi ; Tanii, Takashi ; Nishitani, Akira ; Ohdomari, Iwao ; Katamura, Ryuta

Author_Institution

Fac. of Sci. & Eng., Waseda Univ., Tokyo, Japan

fYear

2010

fDate

1-4 Nov. 2010

Firstpage

1441

Lastpage

1444

Abstract

A relative-story displacement sensor for measuring the ceiling-floor displacement and the floor inclination angle was developed. Three pairs of position-sensitive detector (PSD) units and light emitting diode (LED) arrays were utilized for the measurement. The measurement accuracy of the sensor was evaluated using a shaking table and a θ-stage. The outputs from the developed sensor agreed well with the reference, and the accuracy was evaluated to be approximately 0.15 mm in the displacement and 0.1 mrad in the local inclination angle. These results indicate that the developed sensor resolves the angular error problem on the relative-story displacement measurement and is applicable for assessing the safety of actual buildings.

Keywords

ceilings; condition monitoring; displacement measurement; floors; image sensors; light emitting diodes; photodetectors; position measurement; structural engineering; video cameras; angular error problem; ceiling-floor displacement; floor inclination angle; light emitting diode array; local inclination angle; measurement accuracy; position sensitive detector unit; relative story displacement measurement; relative story displacement sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2010 IEEE

Conference_Location

Kona, HI

ISSN

1930-0395

Print_ISBN

978-1-4244-8170-5

Electronic_ISBN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2010.5690382

Filename

5690382