Condition monitoring apparatus
AssigneeJohn Crane UK Limited
InventorsKlaus Meck, Sebastian Sztendel
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Abstract
A condition monitoring apparatus (300) for a system comprising rotating or reciprocating machinery and a seal is disclosed herein. The apparatus comprises a first acoustic sensor (301) coupled to the seal for providing a first acoustic emission signal, a second acoustic sensor (302) coupled to the rotating or reciprocating machinery for providing a second acoustic emission signal, and a filter module (310). The filter module is configured to perform active noise cancellation based on a comparison of the first acoustic emission signal and the second acoustic emission signal.
Claims20
A condition monitoring apparatus for a system comprising rotating or reciprocating machinery and a seal, the apparatus comprising:
- a first acoustic sensor coupled to the seal for providing a first acoustic emission signal;
- a second acoustic sensor coupled to the rotating or reciprocating machinery for providing a second acoustic emission signal;
- and
- a filter module, wherein the filter module is configured to perform active noise cancellation based on a comparison of the first acoustic emission signal and the second acoustic emission signal.
A method of monitoring the condition of a system comprising rotating or reciprocating machinery and a seal, the method comprising:
- obtaining first acoustic emission data emitted from the seal;
- obtaining second acoustic emission data emitted from the rotating or reciprocating machinery;
- and
- performing active noise cancellation based on a comparison of the first acoustic emission data and the second acoustic emission data.
Dependencies are inferred from the claim text.