A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement

Iwao Matsuya; Ryuta Katamura; Maya Sato; Hideaki Kondo; Miroku Iba; Kiyoshi Kanekawa; Yoshihiro Nitta; Takashi Tanii; Shuichi Shoji; Akira Nishitani; Iwao Ohdomari

doi:10.1299/kikaia.77.736

A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement

Iwao Matsuya, Ryuta Katamura, Maya Sato, Hideaki Kondo, Miroku Iba, Kiyoshi Kanekawa, Yoshihiro Nitta, Takashi Tanii, Shuichi Shoji, Akira Nishitani, Iwao Ohdomari

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a novel relative-story displacement sensor for structural health monitoring. The sensor is composed of three pairs of position sensitive detector (PSD) units and light emitting diode (LED) arrays, and is capable of measuring both the local inclination angle of the PSD unit and the relative displacement between the PSD unit and the LED array. By immobilizing the LED arrays on the ceiling and the PSD units on the floor, we can accurately measure the relative-story displacement in real time. We have verified the measurement accuracy of the developed sensor using a shaking table and a θ stage, and the accuracy was evaluated to be approximately 0.15 mm in the displacement and 0.1 mrad in the local rotation angle. The results indicate that the developed sensor is applicable to the relative-story displacement measurement for the diagnostics of an actual building.

Original language	English
Pages (from-to)	736-740
Number of pages	5
Journal	Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	77
Issue number	777
DOIs	https://doi.org/10.1299/kikaia.77.736
Publication status	Published - 2011
Externally published	Yes

Keywords

Damage Evaluation
Local Inclination Angle
Nondestructive Inspection
Optical Measurement
Position Sensitive Detector (PSD)
Relative Story Displacement
Structural Health Monitoring

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1299/kikaia.77.736

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Cite this

Matsuya, I., Katamura, R., Sato, M., Kondo, H., Iba, M., Kanekawa, K., Nitta, Y., Tanii, T., Shoji, S., Nishitani, A., & Ohdomari, I. (2011). A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement. Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 77(777), 736-740. https://doi.org/10.1299/kikaia.77.736

A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement. / Matsuya, Iwao; Katamura, Ryuta; Sato, Maya; Kondo, Hideaki; Iba, Miroku; Kanekawa, Kiyoshi; Nitta, Yoshihiro; Tanii, Takashi ; Shoji, Shuichi ; Nishitani, Akira; Ohdomari, Iwao.

In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 77, No. 777, 2011, p. 736-740.

Research output: Contribution to journal › Article › peer-review

Matsuya, I, Katamura, R, Sato, M, Kondo, H, Iba, M, Kanekawa, K, Nitta, Y, Tanii, T , Shoji, S , Nishitani, A & Ohdomari, I 2011, 'A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement', Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, vol. 77, no. 777, pp. 736-740. https://doi.org/10.1299/kikaia.77.736

Matsuya I, Katamura R, Sato M, Kondo H, Iba M, Kanekawa K et al. A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement. Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A. 2011;77(777):736-740. https://doi.org/10.1299/kikaia.77.736

Matsuya, Iwao ; Katamura, Ryuta ; Sato, Maya ; Kondo, Hideaki ; Iba, Miroku ; Kanekawa, Kiyoshi ; Nitta, Yoshihiro ; Tanii, Takashi ; Shoji, Shuichi ; Nishitani, Akira ; Ohdomari, Iwao. / A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement. In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A. 2011 ; Vol. 77, No. 777. pp. 736-740.

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abstract = "We propose a novel relative-story displacement sensor for structural health monitoring. The sensor is composed of three pairs of position sensitive detector (PSD) units and light emitting diode (LED) arrays, and is capable of measuring both the local inclination angle of the PSD unit and the relative displacement between the PSD unit and the LED array. By immobilizing the LED arrays on the ceiling and the PSD units on the floor, we can accurately measure the relative-story displacement in real time. We have verified the measurement accuracy of the developed sensor using a shaking table and a θ stage, and the accuracy was evaluated to be approximately 0.15 mm in the displacement and 0.1 mrad in the local rotation angle. The results indicate that the developed sensor is applicable to the relative-story displacement measurement for the diagnostics of an actual building.",

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AU - Iba, Miroku

AU - Kanekawa, Kiyoshi

AU - Nitta, Yoshihiro

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AU - Nishitani, Akira

AU - Ohdomari, Iwao

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