DTS ( Distributed Temperature Sensing )

Description

IdealPhotonics works on DTS ( Distributed Temperature Sensing ) Technology for nearly 10years. This technology makes use of fiber optic sensor cables, typically over lengths of several kilometers, that function as linear temperature sensors. The result is a continuous temperature profile along the entire length of the sensor cable.

DTS utilizes the Raman effect to measure temperature. An optical laser pulse sent through the fiber results in some scattered light reflecting back to the transmitting end, where it is analyzed. The intensity of the Raman scattering is a measure of the temperature along the fiber. The Raman anti-Stokes signal changes its amplitude significantly with changing temperature, the Raman Stokes signal is relatively stable.

The position of the temperature reading is determined by measuring the arrival timing of the returning light pulse similar to a radar echo. This method is called OTDR (Optical Time Domain Reflectometry).

Features 

● High broadband transmittance from deep UV to IR (130nm to 8µm)

● Low refractive index (nd = 1.43384)

● Low spectral dispersion (vd = 95.23)

● Excellent laser durability for Excimer laser optics (157nm, 193nm, 248nm)

● Qualified resistance to high energy particles and radiation

● Available with up to 420mm diameter

Applications

● Power cable 

● Fire detection 

● Pipeline 

● LNG Monitoring ONITORING

● Well and reservoir 

● GEO- and hydrological 

Main DTS Components we can Provide 

Example

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