Fibra optica temperatus sensorem, Magna ratio intelligentis, Distribuit fibra opticus opticus in Sinis
What does armored single-mode temperature measuring optical fiber mean
To enhance the performance of optical fibers, a protective “armor” is added between the coating layer and the core cladding layer to form armored optical fibers. While not affecting the various superior optical properties of the fiber itself, the tensile and compressive strength of the fiber is enhanced, solving problems such as impact resistance, lateral pressure resistance, and rat bite resistance. People have started to coat the fiber bundle with another layer. Fiber optic distributed temperature measurement is widely used in temperature monitoring and fire alarm of facilities such as power, petrochemicals, translationem, buildings, and water conservancy. The length of high-voltage transmission cables is very long, and any point on the cable that overheats may cause huge economic losses.
The composition of a distributed fiber optic temperature measurement system
The distributed fiber optic temperature measurement system adopts armored fiber optic to prevent various external forces from damaging. The main temperature measurement components include temperature measurement host, switch, server, temperature measurement optical cable, and fire controller. The temperature measurement host, switch, and server are connected through a communication backbone network. The fire controller is equipped with a relay unit, and the fire controller is connected to the temperature measurement host. The temperature measurement optical cable is connected to the temperature measurement host.
Distributed fiber optic temperature measurement system for mining
Various contacts, busbars, cable joints, and electrical equipment connectors inside mining equipment are prone to poor contact and abnormal plug-in eccentricity. This will lead to excessive contact resistance, causing severe heating at this point under high current. The result is abnormal joint temperature, exacerbating contact surface oxidation, further increasing contact resistance, forming a vicious cycle. After a certain stage of development, it will cause serious faults and damage the safety and reliability of power supply. This is the main form of fault in high-voltage switchgear. ergo, real-time temperature monitoring of the contact points, timely detection of hot spots inside the switchgear, and early prediction and alarm of faults are extremely important for ensuring the safety of life and property.
The principle of distributed fiber optic temperature measurement system
One of the temperature measurement techniques, which is based on Raman scattering and optical time-domain reflection technology, can achieve the measurement of temperature and distance. Specifically, Raman reflection is based on the temperature effect of backward Raman scattering spectra generated during the propagation of light in optical fibers. Cum levis incidentes quantum impacta cum moleculis materialibus in fibra, concursus elastici et inelastici occurrunt. Cum elasticis occursus occurs, nulla vis commutationis inter luci quantum et moleculas materiales, et frequentia lucis quantum nullo modo immutat, inde in Rayleigh spargens lucem servans eundem esse ac lumen incidentes; In concursu inelastic, industria commutationem occurs, and photons can release or absorb phonons, resulting in the production of a longer wavelength Stokes silk light and a shorter wavelength Stokes light. Ob suavitatem anti Stokes ut temperies, ratio utitur Stokes alveum opticum ut referat canalem et anti Stokes alveum opticum ut canalem canalem. The ratio of the two can eliminate non temperature factors such as light source signal shifting and fiber bending, collectio notitia ad assequendum temperatus. The principle of fiber optic temperature measurement is based on the backward Raman scattering effect.