Noncontact-type relative displacement monitoring system using position sensitive detector

Iwao Matsuya*, Makoto Oshio, Ryota Tomishi, Maya Sato, Kiyoshi Kanekawa, Motoichi Takahashi, Satoru Miura, Yasutsugu Suzuki, Tomohiko Hatada, Ryuta Katamura, Yoshihiro Nitta, Takashi Tanii, Shuichi Shoji, Akira Nishitani, Iwao Ohdomari

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Recently, relative displacement measurement attracts much attention because of its capability for directly monitoring damages of a building structure. We have developed a noncontact-type relative displacement monitoring system by arranging a two-dimensional PSD paired with a LED array on each story, and investigated the feasibility of this system from the viewpoint of measurement accuracy.

Original languageEnglish
Pages (from-to)469-472
Number of pages4
JournalAIJ Journal of Technology and Design
Issue number33
Publication statusPublished - 2010 Jun


  • Base-isolation structure
  • Position sensitive detector (PSD)
  • Relative displacement
  • Structural health monitoring

ASJC Scopus subject areas

  • Architecture
  • Building and Construction


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