Rotor analyzer for an induction motor

A method of analyzing a rotor having a plurality of bars, comprising:

• using an excitation coil to induce a pulsating current sequentially through each of said plurality of bars;
• exposing a search coil to a magnetic flux generated by said pulsating current to create an analog signal;
• creating raw digital data from said analog signal;
• determining a number of said plurality of bars by recognizing a repeating pattern associated with said raw digital data;
• as a function of said raw digital data, assigning a first digital value to each bar of said plurality of bars;
• and
• displaying said first digital value to provide a visual indication of a certain characteristic of said plurality of bars.

A method of analyzing a rotor having a plurality of bars, comprising:

• establishing a first plurality of values corresponding to said plurality of bars;
• creating a bar chart having a first plurality of columns corresponding to said first plurality of values, whereby the association of said first plurality of bars and said bar chart is readily apparent;
• establishing a second plurality values corresponding to said plurality of bars;
• creating a second plurality of columns corresponding to said second plurality of values;
• and
• comparing said first plurality of values to said second plurality of values.

A rotor analyzer for a rotor having a plurality of bars comprising:

• means for inducing a current through each of the plurality of bars but not necessarily in sequence or simultaneously;
• means for creating raw digital data as a function of the induced current;
• means for manipulating the raw digital data to provide an enhanced visual indication of a certain characteristic of the plurality of bars;
• and
• means for providing a plurality of digital signals per each of the plurality of bars to create a bar signature for each of the plurality of bars thereby creating a plurality of bar signatures.

A rotor analyzer for analyzing a rotor having a plurality of bars, comprising:

• an excitation coil;
• means for using the excitation coil to induce a pulsating current sequentially through each of the plurality of bars;
• a search coil;
• means for exposing the search coil to a magnetic flux generated by the pulsating current to thereby create an analog signal;
• means for repeating raw digital data from the analog signal;
• means for determining a number of the plurality of bars by recognizing a repeating pattern associated with the raw digital data;
• and
• means for assigning a first digital value to each bar of the plurality of bars as a function of the raw digital data and means for displaying the first digital value to provide a visual indication of a certain characteristic of the plurality of bars.