Application fields of fiber grating sensor technology


Application fields of fiber grating sensor technology
The application field of fiber grating sensor technology.
The primary application field of fiber grating sensor technology.
Monitoring of cable temperature.
Real-time online detection of power cable temperature has serious practical significance.
Working condition monitoring, monitoring the heating of cables under different loads, and accumulating historical data;
The current-carrying analysis can ensure that the transmission capacity of the cable is maximized under the condition that the allowable working temperature of the cable is not exceeded, and the working cost is reduced.
Observing the aging situation, it was found that some cables were damaged. Timely adopt cooling measures to delay the aging speed of cables;
Real-time fault monitoring and damage detection of cables in the working process;
Fire monitoring and alarm in the cable trench;
Increase the capacity of high-voltage overhead lines.
It is also widely used in the capacity increase monitoring of high-voltage overhead lines in Europe. Through temperature monitoring of important cross-line, the feed volume of the entire overhead line is realized. Such as the successful cases in Lyon, Paris and other places in France.
Fire and fire monitoring of cable trenches in power plants and large metallurgical enterprises.
The cable trench fire accident is directly related to the safe operation of the unit. According to the analysis of the causes of power accidents, fire accidents caused by cable faults account for a larger proportion. Once a fire alarm occurs, a large area of ​​cable damage will be caused, and the unit will be forced to shut down, causing serious direct economic losses. Timely temperature detection can give early warning in advance, so as to choose the right time.
The conventional temperature measurement method is to set a point-type temperature sensor in the important position of the cable trench, and use the optical cable for temperature data transmission. The advantage of this method is that it is more economical, but it has disadvantages such as cumbersome equipment, poor anti-electromagnetic interference ability, and incomplete monitoring.
Temperature detection and fire monitoring in the transportation field.
For example: highway tunnels, river crossing tunnels, subways, railways, airports, cabins, etc., fire, fire monitoring. Ten alarm outputs can jointly start forced ventilation, close the fire path, and notify the medical rescue and command center.
Temperature measurement and monitoring in important areas.
For example: power plant cable trench/bridge, power plant boiler, substation equipment, coal conveying system conveyor belt, computer room, TV station, communication room, mobile base station, control room, cable channel, etc.