A relative-story displacement sensor resolving the angular error problem

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationIEEE Sensors 2010 Conference, SENSORS 2010
Number of pages4
Publication statusPublished - 2010 Dec 1
Event9th IEEE Sensors Conference 2010, SENSORS 2010 - Waikoloa, HI, United States
Duration: 2010 Nov 12010 Nov 4

Publication series

NameProceedings of IEEE Sensors


Conference9th IEEE Sensors Conference 2010, SENSORS 2010
Country/TerritoryUnited States
CityWaikoloa, HI

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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