Compatible wirh all Opsens’ WLPI series of signal conditioners
Key Features
- Miniature design (230 μm diameter)
- Outstanding repeatability
- Temperature independent
- Insensitive to transverse strains
- EMI/RFI and microwave immune
- Intrinsically safe
Applications
- EM, RF and microwave environments
- High voltage environments
- Nuclear and hazardous environments
- Civil engineering and geotechnical applications
- OEM-type and custom version available
Description
Opsens’ new patent pending fabrication process ensures an exact definition of the gauge factor, making OSP-A the most accurate fiber-optic strain gauge sensor in the industry.
Combined with Opsens’ WLPI signal conditioning technology (patent #7.259.862) and with the inherent advantages of fiber optics, the OSP-A delivers unprecedented repeatability and reliability in the most adverse conditions such as high levels of electromagnetic fields as well as high voltage and rapid temperature cycling conditions.
The OSP-A uses two optical fibers that are precisely aligned inside a microcapillary tube to form an optical Fabry-Pérot interferometer. This makes the OSP-A strain gauge completely immune to any electromagnetic interference.
It is also completely insensitive to transverse strains and temperature, as opposed to fiber Bragg gratings. Its micro-miniature size also makes the OSP-A fiber optic sensor ideal for space-constrained applications such as intelligent load-sensing bolts and studs. Careful choice of materials for the sensor, fiber coating and cable buffering permits a high temperature operating range from -40 °C to +250 °C.
This miniature and robust fiber optic strain gauge sensor, available in different cables and sheath options, is customizable according to customer specific applications or for OEM-type applications.
