Monitoring system for grounding apparatus

A monitoring system for a device having a rotating shaft and a grounding member positioned in electrical contact with the rotating shaft, the monitoring system comprising:

• a voltage sensor configured to sense an electrical voltage in the rotating shaft;
• a processor operably coupled with the voltage sensor, the processor configured to receive and analyze data indicative of electrical voltage sensed by the voltage sensor;
• a memory operably coupled with the processor and configured to store data processed by the processor that is indicative of the data provided by the voltage sensor;
• the processor further configured to periodically sample a value of the data indicative of electrical voltage from the voltage sensor and record each value to the memory;
• and
• the processor further configured to develop, over time, a reconstructed waveform representing a compilation of the periodically sampled values recorded to the memory.

A monitoring system for a device having a rotating shaft and a grounding member positioned in electrical contact with the rotating shaft, the monitoring system comprising:

• an electrical sensor configured to sense an electrical parameter in the rotating shaft;
• a processor operably coupled with the electrical sensor, the processor configured to receive and analyze data indicative of the electrical parameter sensed by the electrical sensor;
• a memory operably coupled with the processor and configured to store data processed by the processor that is indicative of the data provided by the electrical sensor;
• the processor further configured to periodically sample a value of the data indicative of the electrical parameter from the electrical sensor at a sampling rate that is related to a rotation speed of the rotating shaft such that a particular sampling corresponds to an angular position of the rotating shaft that is rotationally offset from the angular position of the rotating shaft corresponding to an immediately previous sampling, the processor recording each value to the memory;
• and
• the processor further configured to develop, over time, a reconstructed waveform representing a compilation of the periodically sampled values of the data indicative of electrical voltage from the electrical sensor.