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Advantages of AtGrating FBG Products

  • Simple and Light

    Simple and Light

    FBG sensor is simple in structure, small in size, light in weight, and variable in shape. It is suitable for burying in large structures. It can measure the stress, strain and structural damage inside the structure, with good stability and repeatability.

  • Compatibility

    Compatibility

    There is natural compatibility with optical fibers, easy to connect with optical fibers, low loss, good spectral characteristics, and high reliability.

  • Non-conductive

    Non-conductive

    It is non-conductive, has little impact on the measured medium, and has the characteristics of anti-corrosion and anti-electromagnetic interference, which is suitable for working in harsh environments.

  • Lightweight and Soft

    Lightweight and Soft

    Lightweight and soft, multiple gratings can be written in one optical fiber to form a sensing array, which is combined with wavelength division multiplexing and time division multiplexing systems to realize distributed sensing.

  • Anti-interference

    Anti-interference

    The measurement information is wavelength-coded. Therefore, the FBG sensor is not affected by factors such as light intensity fluctuations of the light source, fiber connection and coupling loss, and changes in the polarization state of light waves, and has strong anti-interference ability.

  • High Sensitivity

    High Sensitivity

    High sensitivity and high resolution. 

Fiber Sensing Technology

Due to the intrinsic characteristics of optical fiber: good reliability, strong anti-interference ability, anti-electromagnetic interference, anti-corrosion, can work in harsh chemical environment, strong multiplex, etc.


Fiber Sensing Technologies are widely used in civil, industrial, areas, research, biotech, national defense, etc nowadays.


Fiber Sensing Technologies can be generally divided into three categories: interferometric, distributed, and grating-based as shown in below figure. Each category has a large variety diverse types of measurements and applications.


Fiber Sensing Technology


Their evaluation of common Fiber Sensing Technologies is summarized below in below table.



Fabry-Perot

SOFO

OTDR*

ROTDR

BOTDR

Grating-based

Sensor type

Point

Long gauge

Distributed

Distributed

Distributed

-Point-Semi-distributed

Main sensing parameters

-Temperature
-Strain
-Rotation
-Pressure

-Deformation
-Strain
-Force

-Fiber loss
-Break location

-Temperature

-Temperature
-Strain

-Temperature
-Strain
-Rotation
-Pressure

Multiplexing

-Parallel
-Time-division

-Parallel
-Time-division

Distributed

Distributed

Distributed

-Quasi distributed
-Wavelength-division

Advantages

-High sensitivity
-Accurate

-Long gauge
-High spatial resolution

Wide applications

-Infinite sensing points
-Fiber integrated

-Infinite sensing points
-Fiber integrated

-Linearity in response
-Accurate
-High resolution
-Inherent WDM encoding

Disadvantages

Single point

Low speed (10 s)

Detection limitations

-Temperature only
-High cost

Cross sensitivity

Cross sensitivity


Product Inquiry
Leading manufacturer of AtGrating’s fiber bragg grating products.
5F, Building B, Chiwan Industry Park, Shaodi Road, Shekou, Nanshan, Shenzhen 518067, China
sales@atgrating.com
+86-755-2667-4283