FBG Strain Sensors (FS Series)

Data Sheet

Optilab’s FS Series Strain Sensors are Fiber Bragg Grating (FBG) based sensors, designed to be bonded to surfaces and materials, spot welded to strucures and components, attached or directly cast into concrete wet mix.

Product Overview

Optilab’s FS Series Strain Sensors are Fiber Bragg Grating (FBG) based sensors, designed to be bonded to surfaces and materials, spot welded to strucures and components, attached or directly cast into concrete wet mix. Strain sensors are available in the following configurations: Miniature Polymide Strain Sensor, Composite Strain Sensor, Weldable Strain Sensor, Surface Strain Sensor, Surface Long Gage, Embedded Strain Sensor, and Embedded Long Gage. Contact Optilab for more information.

Applications

  • Strain Measurement
  • Civil, industrial, or Aerospace Health Monitoring
  • Fiber optic sensors and traducers interrogation
  • Laboratory Testing and Measurement
  • R&D

Features

  • Robust, Reliable, Compatible
  • Completely passive
  • High multiplexing capability
  • Remote sensing
  • Self-referenced

Feature Name Description
Sensor Specifications
Sensitivity Polyimide 1.2 pm/με Composite 1.2 pm/με Weldable 1.2 pm/με Surface ST 1.5 pm/με Surface LG 1.2 pm/με Embedded ST 1.5 pm/με Embedded LG 1.2 pm/με
Measurement Range ±2500 με
Gauge Length Polyimide <10 mm Composite 92 mm Weldable 25 mm Surface ST 107 mm Surface LG 1005 mm Embedded ST 104 mm Embedded LG 1002 mm
Resolution 1 με
Optical Specifications
Central Wavelength 1500 to 1600 nm
Spectral Width (FWHM) < 0.2 nm
Reflectivity > 65%
Side Lobe Suppression > 10 dB
Input/Output Specifications
Cable Type Ø 0.9 mm laboratory (hytrel) Ø 3 mm indoor (kevlar) Ø 3 mm outdoor (armor)
Cable Length 2 m each side (±5 cm)
Connectors FC/APC SC/APC NC (No Connectors)
Environmental Specifications
Operation Temperature -20 to 80 ºC
Protection Class Surface IP68 Embedded IP68
Mechanical Specifiations
Materials Polyimide film Composite GFRP and polyurethane Weldable stainless steel Surface stainless steel Embedded stainless steel
Dimensions Polyimide 40 x 12 x 0.2 mm Composite 130 x 20 x 6 mm Weldable 45 x 15 x 0.3 mm Surface ST 163 x 35 x 20 mm Surface LG 1065 x 35 x 20 mm Embedded ST 140 x Ø 30 mm Embedded LG 1040 x Ø 30 mm