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FBG temperature sensor

Structural health monitoring based on temperature measurements

The Temperature sensor is a sensitive, ruggedized outdoor temperature sensor based on Fiber Bragg Grating (FBG) technology. It ensures temperature strain-free measurements on civil engineering structures or any other application. Thus it is essential for continuous health monitoring (Structural Health Monitoring, SHM) of bridges, dams, buildings, tunnels, ships, aircraft, trains, and other complex structures. But you can also use it perfectly for compensation measurements when it is necessary to eliminate the temperature effects on the mechanical strain sensors. In addition, it can be used for contact temperature measurements in solid, liquid or gaseous environments.

  • 100% passive sensor without the need for power 
  • broad operating temperature range
  • temperature compensation

100% passive sensor

The sensor does not require any power, and hence can be used for monitoring areas without any power, as well as hazardous or inaccessible areas.

Temperature measurements

This FBG sensor is designed to measure temperature and/or compensate for the temperature impacts on other types of sensors. It enables temperature monitoring of a single location or multiple locations can be monitored by interconnecting several FBG sensors.

Watertight and ruggedized housing

Watertight and ruggedized housing guarantees it works even in harsh, hazardous, or inaccessible areas.

Broad operating temperature range

The FBG temperature sensor has a very broad operating temperature range from -20 °C to +70 °C . The temperature range can be extended on request.

Long distance signal integrity

The Temperature sensor features excellent signal integrity, hence optical cables carry correct, uncorrupted values for very long distances.

High precision

The fiber optic sensor is designed for highly accurate measurements of up to several tens of  sensors in a chain measured by one channel.

Immune to EMI/RFI

The sensor enables operation even in harsh environments and hazardous areas. The advantage is immunity to electromagnetic/radio frequency interference.

Excellent long-term stability

The Temperature sensor is highly durable and reliable even in demanding environments. It is, therefore, suitable for long term field operations.

Low installation costs

Installation and cabling for such sensor networks are much less expensive and less cumbersome than comparable electronic gauge networks.

Connectivity

The sensor can be used alone or incorporated into a large sensing network.

Fast, simple, repeatable installation

Each sensor is inside a metal tube and can be easily installed without any specialist skills.



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