An experimental study on simultaneous measurement of relative displacement and local inclination angle

Iwao Matsuya, Ryuta Katamura, Ikuo Ihara, Takashi Tanii, Yoshihiro Nitta, Akira Nishitani

Research output: Contribution to journalArticle

Abstract

We have developed a noncontact-type relative displacement sensor for structural health monitoring which is capable of measuring relative displacement and rotation angle of the object independently. The sensor is composed of a laser as a measurement target and two position sensitive detectors (PSDs). The accuracy of the sensor system was experimentally evaluated to be 0.10 mm in the relative displacement measurement and 0.22 mrad in the rotation angle measurement respectively. These results indicate that the developed sensor system has a sufficient accuracy for structural health monitoring.

Original languageEnglish
Pages (from-to)951-954
Number of pages4
JournalAIJ Journal of Technology and Design
Volume19
Issue number43
DOIs
Publication statusPublished - 2013 Oct 1

Keywords

  • Laser
  • Local inclination angle
  • Position sensitive detector (PSD)
  • Relative story displacement
  • Structural health monitoring

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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