Optical fiber temperature measurement system

Abstract

The invention discloses an optical fiber temperature measurement system, which comprises a single-wire optical fiber and an embedded demodulator, and is characterized in that the embedded demodulatoris suitable for emitting laser to the single-wire optical fiber and receiving the laser reflected by the single-wire optical fiber, and the embedded demodulator is suitable for modeling and calculating the reflected laser so as to measure the real-time temperature of multiple points. The embedded demodulator of the optical fiber temperature measurement system integrates the functions of emitting laser, separating and reflecting laser, receiving laser and carrying out modeling, calculating and the like on the received laser; therefore, so that the embedded demodulator can directly demodulate the optical signal reflected by the optical fiber into an electric signal capable of presenting a temperature value only by connecting the single-wire optical fiber with the embedded demodulator and distributing the single-wire optical fiber in a site where the temperature needs to be detected, so that computer terminals such as a PC and the like are not needed, the temperature is convenient to detect, the cost is reduced, distributed temperature detection can be carried out on the site, and the reliability of site temperature detection is ensured.

Description

technical field [0001] The invention relates to the field of temperature measurement systems, in particular to an optical fiber temperature measurement system. Background technique [0002] The current optical fiber temperature measurement system generally can only achieve single-point temperature measurement, but for mines and other large-scale sites with complex terrain and high risk factors, it is necessary to measure the distributed temperature of the site in real time. The cost of point temperature measurement is high, and the detection coverage cannot be guaranteed, so that distributed temperature measurement cannot be realized. Even though some optical fiber temperature measurement systems can realize distributed temperature measurement, it requires the coordinated work of computer terminal equipment such as PCs, and optical fiber measurement The temperature system needs to be tested for a long time, and computer terminal equipment such as PC cannot guarantee the stab...

AI Technical Summary

Problems solved by technology

[0002] The current optical fiber temperature measurement system generally can only achieve single-point temperature measurement, but for mines and other large-scale sites with complex terrain and high risk factors, it is necessary to measure the distributed temperature of the site in real time. The cost of point temperature measurement is high, and the detection coverage cannot be guaranteed, so that distributed temperature measurement cannot be realized. Even though some optical fiber temperature measurement systems can realize distributed temperature measurement, it requires the coordinated work of computer terminal equipment such as PCs, and optical fiber measurement The temperature system needs to be tested for a long time, and computer terminal equipment such as PC cannot guarantee the stability of long-term work

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