skip to main content

SciTech ConnectSciTech Connect

Title: Ultrasonic wave-based structural health monitoring embedded instrument

Piezoelectric sensors and actuators are the bridge between electronic and mechanical systems in structures. This type of sensor is a key element in the integrity monitoring of aeronautic structures, bridges, pressure vessels, wind turbine blades, and gas pipelines. In this paper, an all-in-one system for Structural Health Monitoring (SHM) based on ultrasonic waves is presented, called Phased Array Monitoring for Enhanced Life Assessment. This integrated instrument is able to generate excitation signals that are sent through piezoelectric actuators, acquire the received signals in the piezoelectric sensors, and carry out signal processing to check the health of structures. To accomplish this task, the instrument uses a piezoelectric phased-array transducer that performs the actuation and sensing of the signals. The flexibility and strength of the instrument allow the user to develop and implement a substantial part of the SHM technique using Lamb waves. The entire system is controlled using configuration software and has been validated through functional, electrical loading, mechanical loading, and thermal loading resistance tests.
Authors:
;  [1] ;  [2] ; ;  [3]
  1. Electronic Design Group, Faculty of Engineering of Bilbao, University of the Basque Country, Bilbao (Spain)
  2. AERnnova Engineering Solutions Ibérica S.A., Madrid (Spain)
  3. Instrumentation and Applied Acoustic Research Group of the Technical University of Madrid, Madrid (Spain)
Publication Date:
OSTI Identifier:
22251250
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 84; Journal Issue: 12; Other Information: (c) 2013 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACTUATORS; COMPUTER CODES; EXCITATION; LOADING; PIEZOELECTRICITY; PRESSURE VESSELS; SENSORS; SHEEP; ULTRASONIC WAVES; WIND TURBINES