Acoustic-Based Rotating Component Analysis
First Claim
1. A system comprising:
- an acoustic sensor configured to acquire acoustic data corresponding to a rotating component of a machine during operation of the machine, wherein the acoustic sensor is configured to enhance acoustic signals in a range of frequencies corresponding to at least one evaluated condition of the rotating component and enhance the acoustic signals received from a directional area narrowly focused on the rotating component; and
a computer system including at least one computing device configured to evaluate the rotating component by;
obtaining the acoustic data corresponding to the rotating component;
determining whether any one of the at least one evaluated condition is present in the rotating component based on the acoustic data corresponding to the rotating component; and
storing a result of the determining.
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Accused Products
Abstract
An acoustic sensor acquires acoustic data corresponding to a rotating component of a machine during operation of the machine. The acoustic sensor can be configured to enhance acoustic signals in a range of frequencies corresponding to at least one evaluated condition of the rotating component and/or enhance the acoustic signals received from a directional area narrowly focused on the rotating component. The rotating component is evaluated using the acoustic data acquired by the acoustic sensor. In an embodiment, the machine can be a vehicle traveling past a parabolic microphone. In a more specific embodiment, the vehicle is a rail vehicle and the rotating component is a railroad wheel bearing.
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Citations
20 Claims
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1. A system comprising:
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an acoustic sensor configured to acquire acoustic data corresponding to a rotating component of a machine during operation of the machine, wherein the acoustic sensor is configured to enhance acoustic signals in a range of frequencies corresponding to at least one evaluated condition of the rotating component and enhance the acoustic signals received from a directional area narrowly focused on the rotating component; and a computer system including at least one computing device configured to evaluate the rotating component by;
obtaining the acoustic data corresponding to the rotating component;
determining whether any one of the at least one evaluated condition is present in the rotating component based on the acoustic data corresponding to the rotating component; and
storing a result of the determining. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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an acoustic sensor configured to acquire acoustic data received from a fixed narrowly focused directional area, wherein the directional area includes a target area through which a rotating component of a vehicle moves during operation of the vehicle; and a computer system including at least one computing device configured to evaluate the rotating component by;
obtaining acoustic data corresponding to the rotating component as the rotating component moved through the target area;
determining whether any one of at least one evaluated condition is present in the rotating component based on the acoustic data corresponding to the rotating component, the determining including;
extracting a set of features from the acoustic data corresponding to the rotating component and analyzing the set of features for at least one condition feature associated with the at least one evaluated condition. - View Dependent Claims (12, 13, 14)
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15. A system comprising:
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an acoustic sensor configured to acquire acoustic data received from a fixed narrowly focused directional area, wherein the directional area includes a target area through which a rotating component of a rail vehicle moves during operation of the rail vehicle, and wherein the acoustic sensor is configured to enhance acoustic signals in a range of frequencies corresponding to at least one evaluated condition of the rotating component and enhance the acoustic signals received from a directional area narrowly focused on the rotating component; and a computer system including at least one computing device configured to evaluate the rotating component by;
obtaining acoustic data corresponding to the rotating component as the rotating component moved through the target area;
determining whether any one of at least one evaluated condition is present in the rotating component based on the acoustic data corresponding to the rotating component, the determining including;
extracting a set of features from the acoustic data corresponding to the rotating component and analyzing the set of features for at least one condition feature associated with the at least one evaluated condition. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification