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Optical system with potential for remote health monitoring of subsea machinery

机译：具有对水下机械进行远程健康监控的潜力的光学系统

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A prototype fibre optic sensing system is described with potential to remotely monitor the condition of 3 phase variable frequency sub-sea motors and electric submersible pumps. An indication that the integrity of a powerful electric motor may be compromised can be gained by spectral analysis of the stators drive current, the relative phases of the currents, the measurement of vibration at specific locations on the motor and the temperature of the bearings. The optical interrogation system is based on an imbalanced Mach Zehnder fibre interferometer, illuminated with a broad band source with FBG based current and vibration sensors. Signals from sensors operating at an effective distance of 7 km have been demonstrated.
机译：描述了一种原型光纤传感系统，该系统有潜力远程监测三相变频海底电动机和潜水电泵的状况。可以通过对定子驱动电流，电流的相对相位，电动机特定位置处的振动测量以及轴承温度的频谱分析来获得强力电动机的完整性可能受到损害的指示。光学询问系统基于不平衡的Mach Zehnder光纤干涉仪，并用基于FBG的电流和振动传感器的宽带光源进行照明。已经证明了有效距离为7 km的传感器发出的信号。

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