The OL-WA weldable optical strain gauge from HBM FiberSensing is the right solution for applications in extremely harsh environments.
OL-WA Optical Strain Gauge: Extremely Robust Fiber Bragg Grating (FBG) based Sensor
The OL-WA optical strain gauge was specially developed to withstand extremely harsh operating conditions, which would likely damage the adhesive bond of classic optical strain gauges. It is especialy well-suited for high strain applications. As it can be spot welded to steel structures and materials, the OL-WA features rugged fiber leads with armored cable protections. These sensors can be delivered in optical chains readily prepared to ease on-site installation.
The OL-WA optical strain gauge can also be used for temperature compensation (see installation manual for further information). For that, it needs to be welded to a steel body (OTC-WA-Plate) that can be ordered together with the sensor without additional cost.
- For the spot welding process the Heller c30 Impulse Welding Device is recommended (not available in the US).
Dimensions of OTC-WA-PLATE in millimeters (steel 1.4301):
- Inherent immunity to all electromagnetic effects (EMI, RFI, sparks, etc.)
- Electrical isolation
Safe operation in hazardous environments (e.g. potentially explosive environments, high voltage areas and intense electromagnetic fields)
- Stainless steel packaging and steel reinforced coating
- Outstanding bending capability (6 micron core fiber)
Accurate results during 24/7 operation in aggressive atmospheres and under harsh environments even on curved surfaces
- Based on the measurement of an absolute parameter
- the Bragg wavelength
- independent of power fluctuations
Self- referenced: high quality measurements with long term stability
Easy to Install
- Easy installation by simple spot welding method
Long service life with a permanent non-degradable attachment to the structure material
|Title / Description||Language||Products||Language||Content Types|
|OL-WA - Data Sheet||English|
|OL-WA - Datenblatt||German|
|HBM FiberSensing: Lösungen für optische Messungen - Broschüre||German|
|HBM FiberSensing: Optical Measurement Solutions - Brochure||English|
|OL-WA, OR-WA - Installation Manual||English, German|