Load Bolt Series (LB)

Ideal for measurements on large structures, such as bridges, buildings, and wind turbines. The Load Bolt can be used in high voltage and high electromagnetic areas with long transmission distances without signal integrity issues.

Typical applications include:

  • Structural health monitoring
    • Bridge, tunnel, and other infrastructure monitoring
    • Continuous underwater load measurements
  • Wind turbine health monitoring
    • Onshore and offshore pile monitoring

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Model Part Number Table

Optical strain sensors can be integrated into a bolt to provide tensile measurements through mounting into the center line of the bolt. Requiring only a small hole (typically 2 mm dia.), the strain measurement can be easily integrated into many different bolt diameters and lengths. The Fibos Load Bolt is available in point measurement or daisy chain configuration. Daisy chain does require the fiber to route through the length of the bolt. If using in series with other FBG sensors, a conventional FBG spectrum can be provided and the desired wavelengths for each FBG can be set. If using a PiMS™ (Pi-FBG Measurement Standard) signal conditioner, please select the PiMS™ FBG configuration. Mounting dimensions and alternative cable lengths can be provided upon request.

The performance specifications presented used a signal conditioner that utilizes the PiMS™ technique. Performance with other interrogators is not guaranteed as the interrogator’s measurement performance will impact the overall measurement performance.

±0.25% FSO Uncertainty
Electrical Isolation
EMI & Radiation Immune
Transmission Distance