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

doi:10.3130/aijt.19.951

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 journal › Article › peer-review

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 language	English
Pages (from-to)	951-954
Number of pages	4
Journal	AIJ Journal of Technology and Design
Volume	19
Issue number	43
DOIs	https://doi.org/10.3130/aijt.19.951
Publication status	Published - 2013 Oct

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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10.3130/aijt.19.951

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author = "Iwao Matsuya and Ryuta Katamura and Ikuo Ihara and Takashi Tanii and Yoshihiro Nitta and Akira Nishitani",

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AU - Matsuya, Iwao

AU - Katamura, Ryuta

AU - Ihara, Ikuo

AU - Tanii, Takashi

AU - Nitta, Yoshihiro

AU - Nishitani, Akira

PY - 2013/10

Y1 - 2013/10

N2 - 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.

AB - 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.

KW - Laser

KW - Local inclination angle

KW - Position sensitive detector (PSD)

KW - Relative story displacement

KW - Structural health monitoring

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

Abstract

Keywords

ASJC Scopus subject areas

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