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MINIATURE, EMI/RFI IMMUNE FIBER OPTIC STRAIN GAUGE SENSOR

Use with any of Opsens’ WLPI series of signal conditioners

•  Accurate gauge factor

•  Miniature design (230 µm diameter)

•  Outstanding repeatability

•  Temperature independent

•  Insensitive to transverse strains

•  EMI/RFI and microwave immune

•  Intrinsically safe

Opsens’ new patent pending fabrication process ensures an exact definition of the gauge factor, making OSP the most accurate fiber-optic strain gauge sensor in the industry.

Combined with Opsens’ WLPI signal conditioning technology† and with the inherent advantages of fiber optics, the OSP 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 uses two optical fibers that are precisely aligned inside a microcapillary tube to form an optical Fabry-Pérot interferometer. This makes the OSP 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 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.

•  EM, RF and microwave environments

•  High voltage environments

•  Nuclear and hazardous environments

•  Civil engineering and geotechnical    applications

•  OEM-type and custom version    available

All specifications are subject to change without prior notification