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Related Concept Videos

Measurements of Strain01:27

Measurements of Strain

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 gauge...
Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

Design Example: Strain Gauge Bridge or Wheatstone Bridge

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...
Shearing Strain01:20

Shearing Strain

The shearing strain represents a cubic element's angular change when subjected to shearing stress. This type of stress can transform a cube into an oblique parallelepiped without influencing normal strains. The cubic element experiences a significant transformation when exposed solely to shearing stress. Its shape alters from a perfect cube into a rhomboid, clearly demonstrating the effect of shearing strain. The degree of this strain is considered positive if it reduces the angle between the...
Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...

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Related Experiment Video

Updated: May 13, 2026

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

Study of Graphene-Based Strain Sensing Output Signals Under External Electromagnetic Interference Conditions.

Furong Kang1, Shuqi Han1, Kaixi Bi2

  • 1School of Instrument Science and Technology, North University of China, Taiyuan 030051, China.

Nanomaterials (Basel, Switzerland)
|May 12, 2026
PubMed
Summary

Electromagnetic interference (EMI) significantly impacts graphene sensors used in advanced manufacturing, causing baseline drift and reduced signal quality. Suspended graphene membranes offer improved robustness against EMI compared to direct electrode contact.

Keywords:
baseline driftcurrent density of graphenegraphene-based pressure sensorterms-electromagnetic interference environments

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Production of a Strain-Measuring Device with an Improved 3D Printer
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Production of a Strain-Measuring Device with an Improved 3D Printer

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Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
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Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

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Related Experiment Videos

Last Updated: May 13, 2026

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

Area of Science:

  • Materials Science and Engineering
  • Electrical Engineering
  • Sensor Technology

Background:

  • Graphene's unique properties make it suitable for advanced manufacturing sensors.
  • Electromagnetic interference (EMI) poses a significant challenge to sensor stability in industrial environments.
  • Understanding EMI effects is crucial for reliable graphene-based sensor deployment.

Purpose of the Study:

  • To investigate the impact of EMI on the electrical performance of intrinsic graphene films.
  • To analyze how different graphene sensor configurations affect EMI-induced perturbations.
  • To provide theoretical guidance for designing robust graphene sensors for power systems and IoT.

Main Methods:

  • Utilized COMSOL Multiphysics with Magnetic Fields, Solid Mechanics, and Electrostatics modules.
  • Developed a coupled multiphysics model of a three-phase power transformer and a graphene pressure sensor.
  • Simulated electrical parameter perturbations under various EMI conditions.

Main Results:

  • EMI induced approximately 5% full-scale (FS) baseline drift in graphene current density.
  • Signal-to-noise ratio (SNR) degraded by over 15 dB under typical simulation conditions.
  • Direct contact graphene sensors showed increased EMI sensitivity and noise amplification; suspended configurations exhibited better robustness.

Conclusions:

  • Multiphysics coupling and membrane suspension significantly influence EMI-induced perturbations in graphene sensors.
  • Cavity-suspended graphene architectures offer improved EMI robustness by reducing parasitic coupling and enhancing mechanical isolation.
  • Findings provide theoretical insights for designing resilient graphene sensors for demanding industrial applications.