Study on Network-type Instrumentation System for Health Monitoring of Inaccessible Structural Members

Research Project

Project/Area Number	21560832
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Naval and maritime engineering
Research Institution	Hiroshima University
Principal Investigator	EIJI Shintaku 広島大学, 大学院・工学研究院, 准教授 (50263728)
Project Period (FY)	2009 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000) Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords	疲労破壊 / ひずみセンサ / 圧電セラミックス / 計測システム / マイクロコントローラ / 圧電発電 / 圧電セラミック / 構造計測 / 電源
Research Abstract	The objective of the research is to develop a small instrumentation system for health monitoring of inaccessible structural members of large-scale structures. In this research, the proposal and verification of elemental technologies that composed the sensing device were carried out. The following were carried out through the numerical analysis and the verification experiments of the prototype system ; shape proposal and performance verification of piezoelectric dynamic strain sensor, proposal of signal processing circuit and improvement of measuring device at operating time, possibility verification of backup power supply by piezoelectric power generation, and proposal of wireless communication function of measurement result.