Distributed Temperature Monitoring System

The spatial temperature distribution information is obtained by using the principle of spontaneous Raman scattering and optical time domain reflectometry (OTDR) technology generated when laser is transmitted in the optical fiber. When a laser pulse of a certain energy and width is injected into the optical fiber, it continuously generates backward Raman scattered light while transmitting forward in the optical fiber. The intensity of these backward Raman scattered lights is affected by the temperature of the scattering point of the optical fiber. After the scattered backward Raman light is optically filtered, photoelectrically converted, amplified, and analog-to-digital converted, it is sent to the signal processor, and the temperature information can be calculated in real time. At the same time, the temperature information is located according to the transmission speed of light in the optical fiber and the time of the backward light echo.

Distributed FO Temperature Sensing Host

Distributed FO temperature sensing host is a real-time, online, continuous temperature measurement system. It is a high-tech product integrating light, electricity, signal detection, computer technology, etc. It has the characteristics of real-time monitoring, high temperature measurement accuracy, long measurement distance and precise positioning, intrinsic safety and no electromagnetic interference, so it can truly prevent accidents before they happen.

(1) Temperature monitoring of high-voltage transmission cables, power cables and cable joints in various industries such as electricity, petrochemicals, manufacturing, and metallurgy.

(2) Temperature monitoring of petrochemical oil and gas pipeline leakage and large oil/gas closed storage.

(3) Monitor the temperature distribution along subways, highways, railways and tunnels to forecast fire situations.

(4) Warehouse and shelf temperature monitoring.