The all-fiber host frameless distributed optical fiber temperature measurement system with contact information is a temperature analysis instrument based on fiber optics and laser monitoring technology. Capable of long-distance, large-scale distributed temperature monitoring. It scans the sensing fiber once and can complete the temperature measurement and data storage of thousands of collection points on the fiber. A variety of alarm functions can detect potential accident hazards in the monitored objects in advance, locate and analyze them, especially the analysis of the temperature change process, and timely improve the level of safety production management. In addition, the distributed optical fiber temperature measurement system has inherent high stability and High reliability, can provide long-term uninterrupted monitoring.
The distributed optical fiber temperature sensing system (D) detects temperature changes at different locations along the optical fiber based on the optical time domain reflection of the optical fiber and the temperature effect of the optical fiber back-R scattering, achieving truly distributed measurement. The working principle is mainly based on the fact that when the incident light passes through the optical fiber, the light scattering rate is different due to the different temperatures of the optical fiber body, which in turn affects the change in the intensity of the scattered light received at the light emitting end, thereby calculating the temperature value. Since the propagation speed of light in the fiber is constant, the temperature distribution along the fiber body can be calculated based on the sequence and time interval of the scattered light received at the transmitting end.
Product Features
Long measurement distance, suitable for remote monitoring.
Continuous distributed measurement, simple installation and flexible layout.
High sensitivity, high measurement accuracy, fast response.
It has excellent electromagnetic insulation, is not susceptible to interference, will not produce sparks, is safe and reliable, and has intrinsic lightning protection.
Technical Parameters
Product Model
R
Measuring Distance
Positioning Accuracy
Number of Channels
Route
Measuring Time
＜.
Sampling interval
Temperature accuracy
Degrees Celsius
Working temperature
℃~℃
Temperature measurement range
℃~℃
Working humidity
~No condensation
Power supply
Fiber optic interface
/
Communication interface
R, R, B
Fiber optic type
/ Multimode optical fiber
Alarm partition
Individual
Function indication
b Power display, system fault,
Optical fiber fault and temperature alarm
Alarm mode
Set fixed thresholds and temperature rise
rates, with multi-level alarms
Typical applications
Monitor the temperature distribution along subways, highways and railway tunnels, and conduct disaster forecast
Fire monitoring and alarm in industrial and civil buildings
High-voltage power, overhead line and cable temperature measurement
Submarine cable
Power plant generator busbar
Shanghai Xunguang distributed fiber optic temperature measurement host industry leading price discount original spot