Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures

Hongki Jo, Jongwoong Park, B. F. Spencer, Hyung Jo Jung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Due to their cost-effectiveness and ease of installation, smart wireless sensors have received considerable recent attention for structural health monitoring of civil infrastructure. Though various wireless smart sensor networks (WSSN) have been successfully implemented for full-scale structural health monitoring (SHM) applications, monitoring of low-level ambient strain still remains a challenging problem for wireless smart sensors (WSS) due to A/D converter resolution, inherent circuit noise, and the need for automatic operation. In this paper, the design and validation of high-precision strain sensor board for Imote2 WSS platform and its application to SHM of a cable-stayed bridge are presented. By accurate and automated balancing the Wheatstone bridge, signal amplification of up to 2507-times can be obtained. Temperature compensation and shunt calibration are implemented. In addition to traditional foil-type strain gages, the sensor board has been designed to accommodate a friction-type magnet strain sensor, facilitating fast and easy deployment. The sensor board has been calibrated using lab-scale tests, and then deployed on a full-scale cable-stayed bridge to verify its performance.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8345
DOIs
StatePublished - 2012
Externally publishedYes
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012 - San Diego, CA, United States
Duration: Mar 12 2012Mar 15 2012

Other

OtherSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
CountryUnited States
CitySan Diego, CA
Period3/12/123/15/12

Fingerprint

steel structures
Smart Sensors
Strain Sensor
structural health monitoring
Wireless Sensors
Structural health monitoring
Health Monitoring
Steel structures
Steel
Smart sensors
Cable-stayed Bridge
sensors
Sensors
Cable stayed bridges
Temperature Compensation
Sensor
Strain Gauge
Cost-effectiveness
Converter
Amplification

Keywords

  • Cable-stayed bridge
  • Imote2
  • Strain sensor
  • Structural health monitoring
  • Wireless sensor

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Jo, H., Park, J., Spencer, B. F., & Jung, H. J. (2012). Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8345). [834518] https://doi.org/10.1117/12.915392

Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures. / Jo, Hongki; Park, Jongwoong; Spencer, B. F.; Jung, Hyung Jo.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8345 2012. 834518.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jo, H, Park, J, Spencer, BF & Jung, HJ 2012, Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8345, 834518, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, San Diego, CA, United States, 3/12/12. https://doi.org/10.1117/12.915392
Jo H, Park J, Spencer BF, Jung HJ. Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8345. 2012. 834518 https://doi.org/10.1117/12.915392
Jo, Hongki ; Park, Jongwoong ; Spencer, B. F. ; Jung, Hyung Jo. / Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8345 2012.
@inproceedings{275047a4e52f4eec8f3754983e97f199,
title = "Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures",
abstract = "Due to their cost-effectiveness and ease of installation, smart wireless sensors have received considerable recent attention for structural health monitoring of civil infrastructure. Though various wireless smart sensor networks (WSSN) have been successfully implemented for full-scale structural health monitoring (SHM) applications, monitoring of low-level ambient strain still remains a challenging problem for wireless smart sensors (WSS) due to A/D converter resolution, inherent circuit noise, and the need for automatic operation. In this paper, the design and validation of high-precision strain sensor board for Imote2 WSS platform and its application to SHM of a cable-stayed bridge are presented. By accurate and automated balancing the Wheatstone bridge, signal amplification of up to 2507-times can be obtained. Temperature compensation and shunt calibration are implemented. In addition to traditional foil-type strain gages, the sensor board has been designed to accommodate a friction-type magnet strain sensor, facilitating fast and easy deployment. The sensor board has been calibrated using lab-scale tests, and then deployed on a full-scale cable-stayed bridge to verify its performance.",
keywords = "Cable-stayed bridge, Imote2, Strain sensor, Structural health monitoring, Wireless sensor",
author = "Hongki Jo and Jongwoong Park and Spencer, {B. F.} and Jung, {Hyung Jo}",
year = "2012",
doi = "10.1117/12.915392",
language = "English (US)",
isbn = "9780819490025",
volume = "8345",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - Design and validation of high-precision wireless strain sensors for structural health monitoring of steel structures

AU - Jo, Hongki

AU - Park, Jongwoong

AU - Spencer, B. F.

AU - Jung, Hyung Jo

PY - 2012

Y1 - 2012

N2 - Due to their cost-effectiveness and ease of installation, smart wireless sensors have received considerable recent attention for structural health monitoring of civil infrastructure. Though various wireless smart sensor networks (WSSN) have been successfully implemented for full-scale structural health monitoring (SHM) applications, monitoring of low-level ambient strain still remains a challenging problem for wireless smart sensors (WSS) due to A/D converter resolution, inherent circuit noise, and the need for automatic operation. In this paper, the design and validation of high-precision strain sensor board for Imote2 WSS platform and its application to SHM of a cable-stayed bridge are presented. By accurate and automated balancing the Wheatstone bridge, signal amplification of up to 2507-times can be obtained. Temperature compensation and shunt calibration are implemented. In addition to traditional foil-type strain gages, the sensor board has been designed to accommodate a friction-type magnet strain sensor, facilitating fast and easy deployment. The sensor board has been calibrated using lab-scale tests, and then deployed on a full-scale cable-stayed bridge to verify its performance.

AB - Due to their cost-effectiveness and ease of installation, smart wireless sensors have received considerable recent attention for structural health monitoring of civil infrastructure. Though various wireless smart sensor networks (WSSN) have been successfully implemented for full-scale structural health monitoring (SHM) applications, monitoring of low-level ambient strain still remains a challenging problem for wireless smart sensors (WSS) due to A/D converter resolution, inherent circuit noise, and the need for automatic operation. In this paper, the design and validation of high-precision strain sensor board for Imote2 WSS platform and its application to SHM of a cable-stayed bridge are presented. By accurate and automated balancing the Wheatstone bridge, signal amplification of up to 2507-times can be obtained. Temperature compensation and shunt calibration are implemented. In addition to traditional foil-type strain gages, the sensor board has been designed to accommodate a friction-type magnet strain sensor, facilitating fast and easy deployment. The sensor board has been calibrated using lab-scale tests, and then deployed on a full-scale cable-stayed bridge to verify its performance.

KW - Cable-stayed bridge

KW - Imote2

KW - Strain sensor

KW - Structural health monitoring

KW - Wireless sensor

UR - http://www.scopus.com/inward/record.url?scp=84861112210&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861112210&partnerID=8YFLogxK

U2 - 10.1117/12.915392

DO - 10.1117/12.915392

M3 - Conference contribution

AN - SCOPUS:84861112210

SN - 9780819490025

VL - 8345

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -