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Tilt sensors

Deflection or bending of (super) structures tells a lot about the loads its experiencing. Somni tilt sensors are perfectly equiped to measure the inclination or tilt of an object with high precision. Our sensors our compensated for drift and temperature effects, giving you stable readings over extended periods of time.

Most of Europe´s bridges are built in the 1960´s and 1970´s. In those days the use of reinforced concrete was very common. In current time, i.e. 50 to 60 years later, these bridges are deteriorating at a rapid rate and pretty much all bridges are considered deficient by today´s design standards. A widespread failure in bridges across Europe is imminent. The collapse of the Morandi bridge in Genoa (Italy) at an age of 51 years, is expected to be merely the first major incident.

The Morandi bridge has highlighted the importance of effective monitoring systems, which are able to identify structural problems at an early stage, guaranteeing in this way the public safety.

Fiber optic sensing technology provides the necessary means to effectively monitor a large infrastructure such as a bridge. The sensing technology is free from corrosion, has long-term stability, and allows continuous monitoring. Furthermore, it is free from electromagnetic interferences, avoiding undesirable noise, while having a very low signal transmission loss that allows very remote monitoring. The number of potential failure modes inside the sensor is reduced to a bare minimum owing to the long term sensor reliability. Incorporating extra redundancy in the sensor system ensures very low failure rates or loss of monitoring data. Fiber optic sensing technology overcomes most of the limitations encountered in other kinds of sensors.

Many kinds of inclinometers have been available on the market. Nevertheless, few are very accurate and able to be multiplexed. Moreover, most inclinometers are sensitive to temperature effects in real operating conditions, which in turn lead to difficulties in interpreting very small changes in sensor response.

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Somni solution sensor Tilt sensor TI 1-ax 500 T

Tilt sensor TI 1-ax 500 T

The TI 1-ax 500 T tilt sensor of Somni Solutions is used for high accuracy tilt measurement. This sensor is particularly suitable for monitoring of structures with slow or minimal movements. The high wavelength shift per degrees or radian supports high accuracy measurements of tilt or angle.

With an angle sensitivity of 500 pm per degree and a measuring range of 10 degrees, the TI 1-ax 500 T tilt sensor is unique in its kind. The intrinsic temperature compensation mechanism allows to resolve very small angle changes of 0.002 degrees. All sensors are packaged in a rugged stainless steel housing offering maximum protection against harsh environments.

  • >500pm/deg sensitivity
  • +/-5 deg range
  • excellent long term stability
  • temperature compensated
  • drift compensation
  • 1, 2 and 3 axis
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