Developing Embedded Wireless Strain/Stress/Temperature Sensors Platform for Highway Applications

This project will develop a proof-of-concept radio frequency (RF)-wireless-embedded sensor platform for monitoring strain/stress/temperature/moisture values inside the asphalt/soil/concrete structures. The sensor platform will not significantly change standard construction procedures nor the properties and performance of the structure. The sensor has capability of self-aligning inside the structures, measuring localized strain/stress values from defined directions and temperature changes within the materials about three inches in diameter. The main products at the end of this project: 1.) a self-alignment-embedded sensor platform that can measure stress/strain/temperature and other parameters, 2.) a RF transmitter that will send collected data from sensor platform to data station, 3.) a MEMS-made power harvesting recharge device will transfer the mechanical vibration caused by traffic into electrical energy for the integrated rechargeable batteries, and 4.) a sensor self-alignment apparatus that will ensure the stress/strain measurement comes from defined direction. After the calibration, the proposed sensor may also be used to measure the underground water moisture by measuring RF signal power attenuation based on "Skin Effect" (same physical phenomenon used in Time Domain Reflectometers). The sensors can be either precisely placed at designated positions to monitor strain/stress/temperature changes of critical spots or randomly placed in the highway structures at the construction time for overall structure performance monitoring and traffic data collection. The main potential impacts on practice of the proposed innovation include: (1) Provide a breakthrough technology for nondestructive monitoring and evaluating the performance of highway infrastructures at relatively low cost; (2) Provide a reliable tool to continually and remotely monitor the static and dynamic responses of highway structures to different loading conditions; (3) Provide the comprehensive data for verifying current highway structure design models and guidelines; and (4) Provide a major component of Road Weather Information System for live highway dynamic traffic flow mapping.

Language

  • English

Project

  • Status: Completed
  • Contract Numbers:

    Project 20-30, IDEA

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Jawed, Inam

  • Start Date: 20080903
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 18976

Subject/Index Terms

Filing Info

  • Accession Number: 01547257
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 20-30, IDEA
  • Files: TRB, RiP
  • Created Date: Dec 4 2014 1:00AM