CPC G01D 5/35345 (2013.01) [G01K 11/32 (2013.01); G01L 1/242 (2013.01); G01R 31/62 (2020.01)] | 14 Claims |
1. A sensor system comprising:
a sensor network comprising at least one optical fiber that includes one or more optical sensors, the optical sensors arranged to sense vibration of an electrical device and to produce a time varying light output in response to the vibration;
at least one detector configured to generate an electrical time domain signal in response to the time varying light output of at least one optical sensor of the sensor network; and
an analyzer configured to:
acquire at least one snapshot frequency component signal comprising one or more time varying signals of frequency components of the time domain signal over a data acquisition time period; and
detect a condition of the electrical device based on the snapshot frequency component signal;
wherein the electrical device is electrically connected to a power grid, and the snapshot frequency component signal includes a frequency of the power grid and one or more harmonics thereof.
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