Frequency domain engine defect signal analysis
Vibration monitoring device
System for operational monitoring of a machine
Vibration data collecting and processing apparatus and method
Computerized diagnostic system for microprocessor-based, portable machinery Patent #: 5422824
ApplicationNo. 326448 filed on 10/20/1994
US Classes:702/56, Vibration detection73/579, Resonance, frequency, or amplitude study73/658, With electrically controlled indicator340/635, Condition of electrical apparatus340/683, Vibration700/177, Protective or diagnostic feature702/77Using Fourier method
ExaminersPrimary: Voeltz, Emanuel T.
Assistant: Shah, Kamini
Attorney, Agent or Firm
International ClassesG06F 011/32
AbstractA predictive vibration monitoring system for a machine includes a microcontroller and a machine to be monitored. The machine to be monitored includes at least one rotative element. At least one sensor is operatively connected to the machine. The at least one sensor is operable to convert mechanical motion generated by the at least one rotative element into a corresponding electrical signal. The at least one sensor inputs the corresponding electrical signal to the microcontroller. A communication means is disposed between the microcontroller and the monitored machine. The communication means enables the microcontroller to correlate a predetermined operational state of the monitored machine with a corresponding electrical signal generated by the at least one sensor. A memory means communicates with the microcontroller and stores a predetermined logic routine, at least one corresponding electrical signal and at least one predetermined key frequency of the at least one rotative element of the machine to be monitored. The microcontroller utilizes the predetermined logic routine to process the corresponding electrical signal into corresponding vibration data of the monitored machine. The microcontroller compares the corresponding vibration data with the at least one predetermined key frequency to predict the present and future condition of the at least one rotative element.