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Climate is a vital safety indicator in almost any industry. We’ve got we have got we’ve got the technology of distributed temperature sensors using optical fiber enables calculating the temperature anytime within the fiber, through getting an interval of merely one meter, allowing the detailed temperature dependence of needed areas. The information acquired using this technique will help you develop intelligent warning systems according to it, therefore, replacing outdated point-based monitoring systems.

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The optical fiber itself functions like a fiber optic sensor, along with the distributed nature within the DTS technology enables us to uncover the temperature alteration of an arbitrary point, disbursing many kilometers using this. Additionally, the measurement quality isn’t affected by radio waves, thus, the distributed temperature technologies are free of false alarms.

To obtain more precise, distributed temperature sensors (DTS) allow calculating the options in the object along a fiber optic cable, since the fiber cable could be a straight line sensor, this is a continuously distributed sensing element throughout its entire length.

The operating principle draws on the reflectivity of stimulated Raman scattering regarding (Raman effect). A semiconductor laser could also be used to uncover the place of temperature adjustments to a fiber optic cable. The reality is the dwelling within the optical fiber changes once the temperature changes.

When laserlight light inside the laser system enters the place of temperature change, it interacts while using the altered structure within the optical fiber and in addition to direct light scattering, reflected light seems.

The primary benefits of fiber optic sensors when compared with classical analogs would be the following:


Extremely fast reaction to parameter adjustments to the weather

Low weight

Multiple parameters may be registered concurrently getting just one distributed sensor


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Very wide operating temperature selection of DTS

Small cost per unit entire sensing system

High sensitivity

Extended operating time

The very best spatial resolution of temperature sensors

Capacity chemicals and aggressive environments

DTS isn’t affected by electromagnetic disturbances

The sensitive area of the fiber sensor doesn’t need connect to utility lines.

The processing unit measures the propagation speed and power both direct and reflected light and determines in which the temperature changes. For example, in the wave duration of 1550 nm, a pulsed generation mode can be utilized obtaining a laser power limit of 10 mW.

There are numerous kinds of optical fibers, as both versions meets certain needs because of its characteristics, according to the application because of the fact the options within the optical fiber may be varied greater than a variety.

Physical effects across the optical fiber, for example pressure, deformation, temperature change, personalize the options within the fiber at the goal of exposure and you can try the ecological parameters by calculating the progres within the characteristics within the fiber in the given point.

Generally, a fiber optic sensor includes two concentric layers: fiber core and optical coating. The fiber optic light guide part may be compensated having a layer of acrylate, plastic, reinforced sheath, etc., according to the usage of this fiber cable.

Thus, distributed fiber optic sensors are ideal for industries associated with combustible and explosive materials, for example coal, coal and oil production, etc. to be used in fire home alarm systems of countless structures.

Usage of distributed temperature sensors includes:

fire home alarm systems within the road, rail or service tunnels

thermal monitoring of power cables and overhead transmission lines to optimize production processes

growing the efficiency of coal and oil wells

ensuring the safe condition of economic induction melting furnaces

monitoring the tightness of containers with liquefied gas on ships in unloading terminals

recognition of leaks in dams

temperature control in chemical processes

leak recognition in pipelines.

In addition, DTS systems as well as other tools open brand-new areas of application. For instance, you are able to design a specialized device – a hearth detector with assorted distributed fiber optic temperature sensor.

Locating a hearth in a industrial atmosphere isn’t necessarily easy due to the many disturbing factors, a few which might actually be by detectors as carriers of fireside signs. In addition, dust deposited across the DTS’ sensitive elements can make it hard to operate this means you will disable them.

It’s also essential to think about the possibility smoldering within the deposited dust, that may also result in false alarms. The existence of fumes and aerosols can make it impossible to function smoke optical-electronic fire detectors. The existence of deadly deadly deadly carbon monoxide will trigger gas fire detectors.

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