Monitoring system for a movable component connected to a stationary component

A monitoring system for a movable component connected to a stationary component, the monitoring system comprising:

• a first acoustic sensor placed in the movable component;
• a second acoustic sensor placed in the movable component;
• a first amplifier placed in the movable component;
• a second amplifier placed in the movable component;
• a first connection line connecting the first acoustic sensor to the first amplifier;
• a third connection line connecting the second acoustic sensor to the second amplifier;
• a first power supply placed in the movable component and configured to provide electrical power to the first amplifier;
• a second power supply placed in the movable component and configured to provide electrical power to the second amplifier;
• an air-coupled transformer comprising (i) a first coil placed in the movable component, the first coil configured to provide electrical power to the first power supply and the second power supply, and (ii) a second coil placed in the stationary component, the second coil configured to receive electrical power;
• a third power supply coupled directly to the first coil;
• a single contactless communication unit comprising a first transceiver placed in the movable component and a second transceiver facing the first transceiver and placed in the stationary component;
• a second connection line connecting the first amplifier and the second amplifier to the first transceiver;
• a multiplexer comprising a first electrical input terminal connected to the first amplifier, a second electrical input terminal connected to the second amplifier, and a single electrical output terminal connected to the first transceiver;
• a coupler configured to receive electrical power from the third power supply and to provide electrical power into the second connection line downstream of the multiplexer, the electrical power being in a frequency band differing from a frequency band of an analog signal generated by the first and second acoustic sensors;
• a first decoupler configured to receive electrical power from the second connection line upstream of the multiplexer and to provide electrical power to the first amplifier;
• and
• a second decoupler configured to receive electrical power from the second connection line upstream of the multiplexer and to provide electrical power to the second amplifier.

A monitoring system for a movable component connected to a stationary component, the monitoring system comprising:

• a first acoustic sensor placed in the movable component;
• a second acoustic sensor placed in the movable component;
• a first amplifier placed in the movable component;
• a second amplifier placed in the movable component;
• a first connection line connecting the first acoustic sensor to the first amplifier;
• a third connection line connecting the second acoustic sensor to the second amplifier;
• a balancing head;
• a first power supply placed in the movable component and configured to provide electrical power to the first amplifier;
• a second power supply placed in the movable component and configured to provide electrical power to the second amplifier;
• a third power supply is connected to the balancing head and configured to provide electrical power to the balancing head;
• a single contactless communication unit comprising a first transceiver placed in the movable component and a second transceiver facing the first transceiver and placed in the stationary component;
• and
• a multiplexer comprising a first electrical input terminal connected to the first amplifier, a second electrical input terminal connected to the second amplifier, and a single electrical output terminal connected to the first transceiver.