Fiber optic FBG sensors are capable of capturing data at multiple points along a large structure, measuring strain as small as 1µƐ up to more than 5000µƐ, temperatures up to 1000°C, near DC and high frequency vibrations as well as current, tilt, displacement and more…
A fiber can contain multiple sensing points called Fiber Bragg Gratings (FBG). Packaged FBG sensors can be daisy chained to simplify cabling.
An FBG fiber can directly measure temperature. 1°C will change the light reflected by the FBG by 10pm.
A packaged FBG fiber can translate strain into vibration and acceleration.
A packaged FBG fiber can very accurately measure tilt and displacement.
A packaged FBG fiber can measure current.
An FBG fiber can directly measure strain. 1 microstrain will change the light reflected by the FBG with 1pm.
Applying a special coating on the FBG fiber, it can measure H2 and humidity.
An FBG fiber attached to the circumference of a bearing or gearbox can measure load distribution and torque.
A packaged FBG fiber can measure pressure.
An interrogator is a type of data acquisition system. It sends light into the FBG fiber and captures the light reflected by the FBG sensing points in the fiber. The reflected light is then correlated to temperature, strain or other properties and converted to an electronic signal that can be send over a data network.
FBG sensors outperform in harsh environments
Fiber optic FBG sensors are ideally suited for demanding industries. After all, they outperform electric sensors in environments with lightning strikes, extreme temperatures, … or a combination thereof.
Extreme temperatures
do not damage or affect these sensors, making them ideal for applications in furnaces, chemical processes and cryogenic applications.
Electromagnetic interference
has no effect on the light signal in the sensor so they can be used to monitor motors, generators, transformers and high-voltage switch gear.
Corrosive environments
will not damage a sensing fiber as it is made of glass, making them ideal for use in off-shore applications and civil engineering.
Lightning strikes
do not damage the sensor and the optical fiber cable will isolate your electronics from the sensor so your electronics are protected.
Explosive environments
can be monitored safely with fiber sensors as they use light rather than electric signals, making them ideal for oil & gas applications.
Part of a smart ecosystem
FBG fiber sensors outperform all other sensors in harsh environments. Thanks to our compact and cost-effective data acquisition systems or interrogator, fiber optic sensors are now viable for any applications. Sentea also applies an open model ensuring interoperability with most sensors on the market and offering multiple data interfaces with an easy-to-use API for seamless integration to your application software or control system.
Interoperable
with many FBG senors, FBG sensings fibers and optical MEMS sensors.
Reliable measurements
Patented polarization scrambler and temperature control features offer remarkable short and long-term acquisition accuracy & stability.
Edge computing
Featuring standard data interfaces and an open customer application platform for seamless integration.
Cost-effective
Our silicon photonics chip makes fiber optic sensing affordable and deployable at large scale.
Would you like to learn more?
Our application engineers would be happy to get you started with advice on
- FBG sensing fibers and FBG sensors
- Monitoring solutions for your application
- Interfacing to your dashboard or control system
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