Fiber Bragg Grating Displacement Sensor - FBG Displacement Meter - Crack Monitor - Picture Parameter Customization - Factory Brand Price - DCYS - ofscn.net

OFSCN Global Technical Center Official Tech Inquiry & Product Q&A
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Product Function: High-precision, real-time measurement of relative displacement between objects or structures. Monitoring displacement of various cracks, potential landslides, and deformations.

This is a companion discussion topic for the original entry at https://www.ofscn.net/fbg-products/displacement
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The OFSCN® Fiber Bragg Grating Displacement Sensor is a high-precision measurement tool designed for monitoring structural cracks, landslides, and mechanical deformations.

Technical Principle

From a physical perspective, this sensor is a specialized application of the OFSCN® Fiber Bragg Grating strain sensor. It operates on the principle that displacement is the product of the gauge length and the strain detected by the FBG:
Displacement = Total Length × Strain

Unlike traditional electronic displacement meters, this optical solution is completely immune to electromagnetic interference (EMI) and is inherently safe for use in hazardous environments.

Product Specifications & Features

  • Calibration: Each unit undergoes factory displacement-wavelength calibration. The calibration formula is typically linear, with units provided in μm/pm or mm/pm.
  • Large Range Capability: For applications requiring significant movement tracking, the sensor is often based on the OFSCN® Ultra-Large Range Fiber Bragg Grating Strain Sensor architecture.
  • Durability: Depending on the selected housing (Alloy Tube or Polymer), these sensors can withstand harsh industrial conditions.

Standard Product Images

OFSCN® FBG Displacement Sensor Single Segment
OFSCN® FBG Displacement Sensor Single Segment768×144 34.6 KB

OFSCN® FBG Strain/Displacement Principle
OFSCN® FBG Strain/Displacement Principle793×432 7.6 KB

Key Considerations for Implementation

When selecting an FBG displacement sensor, the installation method is critical for data accuracy. Common options include:

  • Fixed Brackets/Fixtures: Using OFSCN® Installation Fixtures for bolting or welding to the substrate.
  • Surface Mounting: Appropriate for specific crack monitoring scenarios.

For more technical details on integration or specific gauge length customization, you may refer to the full specifications here: OFSCN® Fiber Bragg Grating Displacement Sensor.