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Raman Optical Fiber Distributed Temperature Sensor For UAE & Gulf Countries
Introduction
Temperature monitoring technology's future has arrived in the UAE and Gulf region due to the advent of Optical Fiber Distributed Temperature Sensors (OF-DTSs). A Fiber Optic Distributed Temperature Sensor (DTS) can measure an entire length of the fiber optic cable continuously as opposed to only at specific points like with traditional point sensors. The Optical Fiber Distributed Temperature Sensor system, which is produced by Tempsens, works on principles of Raman light scattering and then employs Optical Time Domain Reflectometry (OTDR) to measure over distances in kilometers range, giving users thousands of temperature readings. This technology provides customers with immediate feedback, high spatial resolution, as well as sampling resolution. These characteristics make it an ideal monitoring tool for industrial facilities across the UAE, Saudi Arabia, Qatar, Oman, Bahrain, and Kuwait that require continuous monitoring of products or processes. The system provides accurate temperature readings using standard cables, with high accuracy and reliability.
About Fiber Optic Distributed Temperature Sensing
Working Principle of Raman Optical Fiber Distributed Temperature Sensor
Raman based optical fiber distributed temperature sensor operate on a Raman Backscattering Principle. The main principle is that when a laser is introduced into an optical fiber, there will be scattering of the light by glass molecules in the fiber. Most of this scattered light will have the same wavelength as the incoming laser (this is called Rayleigh scattering), but some of the scattered light will have wavelengths that are different from the original laser (this is called Raman scattering). The remaining energy in these different wavelength signals is referred to as Stokes and anti-Stokes signals. The ratio of the intensity of the anti-Stokes and Stokes signals provides an accurate measure of the temperature at any location in the fiber. Using the time of flight method with Optical Time Domain Reflectometry (OTDR), the exact location of the temperature measurement can be accurately determined.
Video – https://www.youtube.com/watch?v=OMotD1ezMSY
Application Of Raman Optical Fiber Distributed Temperature Sensor
- Pipelines: Temperature is measured along the length of a pipeline and allows for detection of leaks in a pipeline of oil and gas infrastructure across the Gulf region's extensive pipeline networks
- Fire Systems: The detection of early-stage fires within tunnels, subways, and critical response locations across the GCC
- Utilities: Measurement of temperature of transformer skin, and monitoring of power lines during transmission lines in the region's challenging climate conditions
- Manufacturing: Monitoring the temperature of conveyor belts and the outer surfaces (metals) of reaction vessels (reactors) in Gulf region manufacturing facilities
- Chemical Manufacturing: Process temperature monitoring in potentially hazardous locations.
Specification Of Raman Optical Fiber Distributed Temperature Sensor
| Channel Number | Upto 20 |
| Sensing Length | Upto 20km |
| Fiber Connector | E2000/APC |
| Spatial Resolution | 0.5m , 1m , 2m |
| Location Accuracy | 0.5m |
| Temperature Accuracy | ±1°C |
| Temperature Resolution | 0.1°C |
| Sensing Range | -40°C ~ 200°C (depends on fiber cable capability) |
| Response Time | 5 sec /channel |
| Communication Interface | RJ45, RS232/RS485 |
| Protocol | MODBUS |
| Outputs | RS485 (Modbus), RJ45(Modbus TCP) |
| Power Generation | 220 V AC, 50-60 Hz |
Why Choose Tempsens?
- 35 years of experience in developing technologies that combine both precise temperature measurement with optical sensing, with proven installations across the Middle East region.
- Dedicated technical support team providing assistance throughout the entire purchase and commissioning process with regional expertise in Gulf market requirements.
- Worldwide service network providing timely post-sale product support and maintenance of your systems across the UAE and GCC countries.
Worldwide service network providing timely post-sale product support and maintenance of your systems.
FAQ
Frequently Asked Questions
Find answers to frequently asked questions related to Fiber Optic Distributed Temperature Sensing.
Distributed temperature sensors utilize a single piece of optical fiber to provide continuous temperature readings over the total length of the fiber and can be read at thousands of locations at once; in contrast,</p RTDs and thermocouples
Compared with individual temperature sensors, optical fiber DTS systems will cost significantly more to set up, they need advanced skill sets for both installing and interpreting the information generated using a DTS system, they can lose some degree of accuracy (or specificity) when getting measurements at the lengthiest distances from the fiber, and fibre optics are at risk when being installed (they could be broken), as well as having limitations on how hot they can withstand based on their specification marks (typically referred to as the 'standard ratings).
