Device and process for signal analysis
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 15, 2003
Grant Date -
N/A
app pub date -
Aug 14, 2000
filing date -
Aug 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for detecting or analyzing machinery damage is used preferably in the determination of defects in roller bearings. Pulse-like machinery or bearing noise acquired by a sensor is converted into special time signals. These time signals correspond to events which are basically periodic in occurrence. The time signals are sent to one, preferably several, classification units depending on the time differences. Before classification, combination of adjacent time signals or events is performed using their pulse heights. The combining is multiplicative or obeys some other bivalent relation. Classification forms a frequency distribution with an abscissa which is divided into time units. Specific characteristics of the frequency distribution provide information on incipient or manifest machinery damage.
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