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Related Concept Videos

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...
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...

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Related Experiment Video

Updated: Jun 8, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

Practical fiber-optic Bragg grating strain gauge system.

S M Melle, K Liu, R M Measures

    Applied Optics
    |September 11, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A novel fiber-optic strain gauge system utilizes a fiber-optic Bragg grating sensor for precise structural monitoring. This system accurately measures static and dynamic strains, offering high resolution and a wide dynamic range for smart-structure applications.

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    Last Updated: Jun 8, 2026

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

    Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures
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    Published on: September 2, 2019

    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

    Area of Science:

    • Optical Engineering
    • Materials Science
    • Structural Health Monitoring

    Background:

    • Structural monitoring demands accurate and reliable strain measurement technologies.
    • Existing methods may face limitations in dynamic range, resolution, or bandwidth for certain applications.

    Purpose of the Study:

    • To introduce a new fiber-optic strain gauge system for structural monitoring.
    • To detail the system's design utilizing fiber-optic Bragg grating sensors and passive wavelength demodulation.
    • To evaluate the system's performance in measuring static and dynamic strains.

    Main Methods:

    • Employed a fiber-optic Bragg grating sensor for strain detection.
    • Utilized a passive, wavelength demodulation system to analyze the backreflected spectrum.
    • Characterized the system's resolution, dynamic range, and bandwidth.

    Main Results:

    • Achieved a noise-limited resolution of 0.44 microstrain/√Hz.
    • Demonstrated a measurement dynamic range of 27.8 dB.
    • Confirmed a system bandwidth of 250 Hz for strain measurement.

    Conclusions:

    • The developed fiber-optic strain gauge system is suitable for structural monitoring and smart-structure applications.
    • The system offers robust performance for both static and dynamic strain measurements.
    • The combination of Bragg grating sensors and passive demodulation provides a high-performance strain sensing solution.