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OSP-SW Fiber Optic Rekstrookje

Spot-weldable fiber optic strain sensor for the harshest environments (seals up to 300 bar)

About the OSP-SW Fiber Optic Straingauge

The OSP-SW is a spot-weldable fiber optic strain sensor for monitoring deformation in the most demanding environments and can be easily adapted to be fixed on almost any alloy.

The sensor delivers outstanding repeatability and reliability in the most adverse conditions such as those related to subsea environment or offshore platform. It is completely insensitive to transverse strains. The robust design enables permanent monitoring deformation of immersed infrastructures, even under permanent pressure of 300 bar. A high temperature version is available for environments up to 250°C.

Easy and quick installation is possible with the "quick connect" configuration. When installed, the cable is easily coupled through the special adaptor to reach the signal conditioner. This prevents hassle related to cable management during deployment and the need removes the need to prepare cable section with precise length.

Features OSP-SW

  • Perfectly suited for harsh environments such as marine and subsea conditions (seals up to 300 bars)
  • No drift over time. Reliable results during years
  • Intrinsically safe and immune to EMI/RFI
  • Insensitive to transverse strains
  • Metallic strip can be adapted to be spot welded on almost any alloy

Applications for OSP-SW

  • Offshore platform
  • Wind farms and hydroelectric infrastructures
  • Marine and subsea conditions
  • ATEX and hazardous environment
  • High voltage environments
  • Aerospace and defense applications
  • Structural health monitoring
  • Civil engineering and geotechnical applications


Strain (other ranges available on request)
-1000 to +1000 µɛ, -2500 to +2500 µɛ
0.15 µɛ
Temperature sensitivity
Depends on used alloy for weldable support
Transverse strain sensitivity
Transverse strain insensitive
Temperature operating range
-0°C to +90°C (other ranges up to 250°C available upon request)
EMI/RFI susceptibility
Complete immunity
Cable length
1.5 meters standard (other lenghts available)
Optical connector
SCA standard, SC standard, other connector available on request
Cable sheathing
From ruggedized flexible outdoor cable to robust stainless steel cable
Signal conditioner compatibility
All WLPI signal conditioners
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