Method and apparatus for separating electrical runout from mechanical runout
AssigneeGeneral Electric Company
InventorsMark John DeBlock, W. R. Hugh Fife
Life of this patent
Estimating the term…
Abstract
A method for separating electrical runout from mechanical runout includes positioning at least one position probe against a rotating part, positioning at least one proximity probe adjacent the rotating part, and calculating an electrical runout based on measurements obtained from the position probe and the proximity probe.
Claims25
A method for separating electrical runout from mechanical runout, said method comprising:
- positioning at least one position probe such that the position probe measures a position of a rotating part;
- positioning at least one proximity probe adjacent the rotating part;
- and
- calculating an electrical runout based on measurements obtained from the position probe and the proximity probe.
A method for facilitating a reduction in a piece of rotating equipment slow roll test failures, said method comprising:
- measuring at least one of a concentricity value, an out of roundness value for a proximity surface of a rotor, and an out of roundness value for a journal surface of the rotor prior to the rotor being assembled in the rotating equipment;
- measuring an electrical runout;
- determining a predicted slow roll runout value of the rotor;
- comparing the predicted slow roll value to a pre-determined value;
- and
- re-working the rotor when the predicted slow roll value exceeds the predetermined value.
Inspection apparatus for a rotating part, said apparatus comprising:
- a data collection system;
- a plurality of position probes electrically coupled to said data collection system, said position probes disposed adjacent the rotating part;
- at least one proximity probe electrically coupled to said data collection system, said proximity probe disposed adjacent the rotating part;
- and
- at least one of a computer electrically coupled to said data collection system and a processor within said data collection system, at least one of said computer and said processor configured to calculate an electrical runout.
Inspection apparatus for a rotating part, said apparatus comprising:
- a data collection system;
- a plurality of position probes electrically coupled to said data collection system, said position probes disposed adjacent the rotating part, said plurality of position probes comprise a first probe, a second probe, a third probe and a fourth probe, said first probe substantially 180° from said second probe, said third probe substantially 180° from said fourth probe;
- at least one proximity probe electrically coupled to said data collection system, said proximity probe disposed adjacent the rotating part;
- and
- at least one of a computer electrically coupled to said data collection system and a processor within said data collection system, at least one of said processor and said computer configured to:
- calculate an electrical runout and to determine a predicted slow roll runout for a right probe by adding a plurality of vectors together, and
- determine a predicted slow roll runout for a left probe by adding a plurality of vectors together.
Apparatus for predicting a slow roll test failure utilizing a data collection system having at least one probe, said apparatus comprising a computer programmed to:
- receive a plurality of probe measurements;
- and
- generate at least one slow roll runout value for at least one of a first probe and a second probe.
Dependencies are inferred from the claim text.