The K-OP-A optical-armored strain gauges and rosettes are the right solution for applications in extremely harsh environments.
K-OP-A: Armored Optical Sensors Chain for Harsh Environments
The K-OP-A measurement chain is a configurable array of optical FBG (Fiber Bragg Grating) sensors that withstand extremely harsh operating conditions. Such conditions can likely damage the adhesive bond of classic optical strain gauges.
A K-OP-A chain of optical sensors can integrate in a single optical fiber both, OL-WA linear weldable gauges, well-suited for high-strain applications, and OR-WA weldable rosettes, which measure strain at different points and directions.
Suitable to be spot welded to steel structures and materials, the K-OP-A sensors feature rugged fiber leads with armored cable protection.
In addition, OL-WA linear gauges can be used for temperature compensation of other optical strain sensors. The only requirement is to weld them to a steel body (OTC-WA-Plate) that can be ordered together with the sensor.
- For spot welding, the Heller c30 Impulse Welding Device is recommended (not available in the US).
Example of a configured chain:
- 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 environmental conditions, even on curved surfaces
- Based on the measurement of an absolute parameter - the Bragg wavelength - independent of power fluctuations
Self- referenced meaning: 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
Weldable Sensor Installation Video
|OL-WA - Data Sheet||English|
|OL-WA - Datenblatt||German|
|OR-WA - Data Sheet||English|
|OR-WA - Datenblatt||German|
|HBM FiberSensing: Lösungen für optische Messungen - Broschüre||German|
|HBM FiberSensing: Optical Measurement Solutions - Brochure||English|
|HBM FiberSensing: Optical Measurement Solutions - Brochure||Japanese|
|Instructions for use|
|OL-WA, OR-WA - Installation Manual||English, German|
Optical Monitoring System for Strain and Convergence Measurement