AdministrationAccelerometer having integral fault nullUS5511422 *9 Apr 199330 Apr 1996Monitoring Technology CorporationMethod and apparatus for analyzing and detecting faults in bearings and other rotating components that slipUS5679900 *12 Apr 199521 Oct 1997Skf Condition MonitoringEnvelope enhancement system for detecting paper machine press section anomalous vibration measurementsUS5905440 *19 D