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Related Concept Videos

Measurements of Strain01:27

Measurements of Strain

1.3K
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
1.3K
Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

Design Example: Strain Gauge Bridge or Wheatstone Bridge

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The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
445

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Review of Wireless RFID Strain Sensing Technology in Structural Health Monitoring.

Gang Liu1,2, Qi-Ang Wang1,2, Guiyue Jiao1

  • 1School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China.

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Summary

Wireless and passive Radio Frequency Identification (RFID) strain sensors offer an efficient, cost-effective solution for structural health monitoring (SHM) of large structures, overcoming limitations of traditional wired systems. This review details advancements in RFID strain sensing technologies for intelligent infrastructure assessment.

Keywords:
RFIDSHMpassive sensingstrain sensingwireless sensing

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Area of Science:

  • Engineering
  • Materials Science
  • Computer Science

Background:

  • Structural health monitoring (SHM) is vital for large-scale engineering structures.
  • Traditional wired strain sensors present challenges in terms of cost, complexity, and data acquisition for SHM.
  • Radio Frequency Identification (RFID) technology offers a promising alternative for intelligent strain monitoring.

Purpose of the Study:

  • To systematically review recent advancements in RFID strain sensing technologies for SHM.
  • To provide a comprehensive overview of various RFID strain sensor designs and their applications.
  • To highlight the advantages, disadvantages, and current status of different RFID strain sensing approaches.

Main Methods:

  • Review of existing literature on RFID strain sensing technologies.
  • Demonstration of RFID technology principles and system components.
  • Categorization and analysis of different RFID strain sensor types (passive, active, semi-passive, UHF, chipless, multi-sensory).

Main Results:

  • Detailed presentation of various RFID strain sensing technologies and their characteristics.
  • Discussion of the design principles, advantages, and limitations of each technology.
  • Assessment of the application status of RFID strain sensors in structural health monitoring.

Conclusions:

  • RFID strain sensing technology represents a significant advancement for intelligent SHM.
  • The study provides a foundational, comprehensive review of current RFID strain sensing technologies.
  • Further research and development in RFID strain sensing will enhance infrastructure safety and maintenance.