Part NO. :	DCFBG-series
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FTE-700 Distributed Temperature Sensing System

Description
Distributed Temperature Sensing Systems (DTS) are optoelectronic devices which measure temperatures by means of optical fibres functioning as linear sensors. Temperatures are recorded along the optical sensor cable, thus not at points, but as a continuous profile. A high accuracy of temperature determination is achieved over great distances.
Measuring Principle - Raman Effect
Physical measurement dimensions, such as temperature or pressure and tensile forces, can affect glass fibres and locally change the characteristics of light transmission in the fibre. As a result of the attenuation of the light in the quartz glass fibres through scattering, the location of an external physical effect can be determined so that the optical fibre can be employed as a linear sensor.
Optical fibres are made from doped quartz glass. Quartz glass is a form of silicon dioxide (SiO2) with amorphous solid structure. Thermal effects induce lattice oscillations within the solid. When light falls onto thesethermally excited molecular oscillations, an interaction occurs between the light particles (photons) and the electrons of the molecule. Light scattering, also known as Raman scattering, occurs in the optical fibre. Unlike incident light, this scattered light undergoes a spectral shift by an amount equivalent to the resonance frequency of the lattice oscillation.
Applications
Road tunnels and metro fire alarming and temperature detection
Electrical cable tunnels and composite temperature measurement
Petrolic pipeline and gas pipeline leakage detection
Dam and dike leakage detection
Features
Fast response for temperature
As far as20kmdistributed temperature testing
Low power consumption, high reliability, intergrated design
Specification

10um series of optical fiber	10um series of optical fiber	10um series of optical fiber