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Microwire-Based Sensor Array for Measuring Wheel Loads of Vehicles.

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Sensors (Basel, Switzerland)
|November 14, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel magnetic microwire sensor array for concrete stress monitoring. These cement-based sensors offer a feasible and cost-effective solution for pavement weighing systems.

Keywords:
SHMconcreteembedded sensorferromagnetic microwiresswitching field

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Area of Science:

  • Materials Science
  • Civil Engineering
  • Sensor Technology

Background:

  • Traditional stress monitoring in concrete structures can be costly and invasive.
  • Existing sensors may not offer optimal integration or performance within cementitious materials.
  • There is a need for robust, embedded sensors for real-time structural health monitoring.

Purpose of the Study:

  • To investigate the feasibility of using magnetic microwire-based sensors for stress monitoring in concrete.
  • To develop and evaluate cement-based stress/strain sensors utilizing the magnetic sensing properties of embedded microwires.
  • To compare the performance of these novel sensors against traditional gauge sensors.

Main Methods:

  • Development of cementitious composite material incorporating magnetic microwires.
  • Fabrication of a sensor array for embedding within concrete structures.
  • Experimental testing under compressive loadings to assess strain sensitivity and linearity.
  • Comparison of results with conventional strain gauge sensors.

Main Results:

  • The magnetic microwire-based sensors demonstrated measurable strain sensitivity and linearity under compressive loads.
  • The cementitious material proved suitable for embedding sensors within concrete structures prior to curing.
  • Performance comparison indicated potential for these novel sensors to rival traditional gauge sensors.

Conclusions:

  • Magnetic microwire-based sensors embedded in cementitious composites are feasible for concrete stress monitoring.
  • These sensors offer a promising, cost-effective alternative for integrated structural health monitoring systems.
  • Further development can optimize sensor design for improved coupling and minimal stress disturbance.