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.