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US 12,198,872 B2Granted
Systems and methods for detecting and removing residue from low current electrical contacts
AssigneeThe Boeing Company
InventorsMichael James Bunting, Dean Anh Nguyen
Life of this patent
Estimating the term…
Abstract
A system, a method, a device, and an apparatus include a control unit configured to determine contact resistance of one or more electrical contacts of one or more circuits, and remove, via a wetting current, residue on the one or more electrical contacts.
Claims20
A system comprising:
- a control unit configured to:
- determine contact resistance of one or more electrical contacts of one or more circuits by applying a test current to the one or more circuits, cycling a connection in relation to the one or more circuits a predetermined number of times, determining steady behavior of the one or more circuits in response to a measurement for each cycle remaining within a predetermined threshold of a first measurement, and determining existence of an unacceptable amount of residue on the one or more electrical contacts in response to the measurement for each cycle exceeding the predetermined threshold of the first measurement, and
- remove, via a wetting current, the residue on the one or more electrical contacts.
A method comprising:
- determining, by a control unit, contact resistance of one or more electrical contacts of one or more circuits, wherein said determining comprises:
- applying a test current to the one or more circuits,
- cycling a connection in relation to the one or more circuits a predetermined number of times,
- determining steady behavior of the one or more circuits in response to a measurement for each cycle remaining within a predetermined threshold of a first measurement, and
- determining existence of an unacceptable amount of residue on the one or more electrical contacts in response to the measurement for each cycle exceeding the predetermined threshold of the first measurement;
- and
- removing, via a wetting current applied by the control unit, the residue on the one or more electrical contacts.
4 more elements
A non-transitory computer-readable storage medium comprising executable instructions that, in response to execution, cause one or more control units comprising a processor, to perform operations comprising:
- determining contact resistance of one or more electrical contacts of one or more circuits, wherein said determining comprises:
- applying a test current to the one or more circuits,
- cycling a connection in relation to the one or more circuits a predetermined number of times,
- determining steady behavior of the one or more circuits in response to a measurement for each cycle remaining within a predetermined threshold of a first measurement, and
- determining existence of an unacceptable amount of residue one the one or more electrical contacts in response to the measurement for each cycle exceeding the predetermined threshold of the first measurement;
- and
- removing, via a wetting current, the residue on the one or more electrical contacts.
4 more elements
Dependencies are inferred from the claim text.