Submarine cable monitoring solutions
- cách chơi baccarat DAS method detects vibrations and measures sound energy along cách chơi baccarat entire length of cách chơi baccarat fiber. Fiber optic behaves as if there were thousands of microphones installed.
Complex detection and classification algorithms are used for identification and location.
- cách chơi baccarat PD measurement methodis widely used to effectively and non-destructively evaluate cách chơi baccarat insulating performance of cable systems.
cách chơi baccarat purpose of cách chơi baccarat PD monitoring system is to monitor electrical line dielectric failure insulation problems by measuring cách chơi baccarat partial discharge signals in real-time.
To detect cách chơi baccarat PD signal at cách chơi baccarat on-site power cable system, HFPD (High-Frequency Partial Discharge) detection methods and HFPD online monitoring system have been developed. cách chơi baccarat HFPD monitoring system measures PD signals with high sensitivity. And PD data is analyzed by data pattern analysis method and neural network software whether detecting signal is PD or not. When cách chơi baccarat PD signal is detected, an alarm signal will be sent to cách chơi baccarat client.
- cách chơi baccarat DTS methodis based on optical time -domain reflectometry (OTDR) also known as backscatter. This is a common technique used frequently by telecommunications engineers to check cách chơi baccarat integrity of fiber optic cables. In this technique, a pulse of laser light is launched into cách chơi baccarat sensor fiber through a directional coupler. Light is scattered as cách chơi baccarat pulse travels down cách chơi baccarat fiber through a number of mechanisms including density and composition fluctuations (known as Rayleigh scattering) as well as molecular-induced Raman scattering.
Part of this scattered light resides in cách chơi baccarat acceptor cone of cách chơi baccarat optical fiber (i.e. retained in cách chơi baccarat optical waveguide or core of cách chơi baccarat fiber) and is directed back to cách chơi baccarat source. This return signal is separated by cách chơi baccarat directional coupler to an optoelectronic detector. In a uniform optical fiber, cách chơi baccarat intensity of cách chơi baccarat backscattered light signal decreases exponentially with time. Therefore, knowing cách chơi baccarat speed of light in an optical fiber, cách chơi baccarat distance light travels down cách chơi baccarat fiber can be calculated.
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