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 journalArticle

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 languageEnglish
Pages (from-to)736-740
Number of pages5
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume77
Issue number777
Publication statusPublished - 2011
Externally publishedYes

Fingerprint

Structural health monitoring
Detectors
Light emitting diodes
Sensors
Displacement measurement
Ceilings

Keywords

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

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

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 journalArticle

@article{af553a9186254e7ebbb6b0ff885c5392,
title = "A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement",
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.",
keywords = "Damage Evaluation, Local Inclination Angle, Nondestructive Inspection, Optical Measurement, Position Sensitive Detector (PSD), Relative Story Displacement, Structural Health Monitoring",
author = "Iwao Matsuya and Ryuta Katamura and Maya Sato and Hideaki Kondo and Miroku Iba and Kiyoshi Kanekawa and Yoshihiro Nitta and Takashi Tanii and Shuichi Shoji and Akira Nishitani and Iwao Ohdomari",
year = "2011",
language = "English",
volume = "77",
pages = "736--740",
journal = "Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A",
issn = "0387-5008",
publisher = "Japan Society of Mechanical Engineers",
number = "777",

}

TY - JOUR

T1 - A relative-story displacement sensor for structural health monitoring capable of measuring the local inclination angle and the relative displacement

AU - Matsuya, Iwao

AU - Katamura, Ryuta

AU - Sato, Maya

AU - Kondo, Hideaki

AU - Iba, Miroku

AU - Kanekawa, Kiyoshi

AU - Nitta, Yoshihiro

AU - Tanii, Takashi

AU - Shoji, Shuichi

AU - Nishitani, Akira

AU - Ohdomari, Iwao

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

KW - Damage Evaluation

KW - Local Inclination Angle

KW - Nondestructive Inspection

KW - Optical Measurement

KW - Position Sensitive Detector (PSD)

KW - Relative Story Displacement

KW - Structural Health Monitoring

UR - http://www.scopus.com/inward/record.url?scp=84856428580&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856428580&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84856428580

VL - 77

SP - 736

EP - 740

JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

SN - 0387-5008

IS - 777

ER -