Vibration monitoring device
Patent 4520674 Issued on June 4, 1985. Estimated Expiration Date: 
November 14, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 14, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3913084 Method of testing with computers Method and apparatus for monitoring the shaft vibration of a rotary machine Acoustical defect detection system Patent #: 4429578 InventorsAssigneeApplicationNo. 06/551338 filed on 11/14/1983US Classes:73/660, Rotating machinery or device702/197, Having multiple filtering stages702/56Vibration detectionExaminersPrimary: Kreitman, Stephen A.Attorney, Agent or FirmInternational ClassG01H 1/00 (20060101)AbstractA portable vibration monitoring device (10) for use in connection with a base computer (11) which stores data regarding the nature and parameters of vibration measurements to be made on preselected machines for predictive maintenance purposes. The device includes a power module (36) which energizes the various components. A vibration sensor (14) produces an analog signal which is representative of selected vibration parameters. The signal generated by the vibration monitor is conditioned by a signal conditioning module (16) which includes anti-aliasing filters which enhance the accuracy of the data collected. A multiple function module (18) includes various selectively energized modules which enhance the speed and reliability of the data collected. This data is analyzed by a microprocessor and displayed as desired. | |
