Device and process for machine diagnostics by means of vibration measurement
First Claim
1. Device for machine diagnostics, comprisinga vibration sensor for detecting vibration on a machine and outputting vibration signals representative of vibration detected,a conditioning unit for conditioning the vibration signals,an A/D converter for digitizing the conditioned vibration signals,a data processing unit directly connected to the A/D converter for splitting the digitized signals received directly from the A/D converter into parallel split signals for at least two different frequency ranges, the data processing unit being adapted for scaling the signal for each of the different frequency ranges to an amplitude resolution which is less than the amplitude resolution of the digitized signals produced by the A/D converter, andan evaluation unit receiving the parallel split signals for evaluation and modification.
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Accused Products
Abstract
A device for machine diagnostics, with a vibration sensor (12) for detecting vibration signals on the machine (10), a unit (14) for conditioning the vibration signals, an A/D converter (16) for digitizing the conditioned vibration signals, a data processing unit (20) for splitting the digital signals into at least two frequency ranges, the data processing unit being made to scale the signal for each frequency range to an amplitude resolution which is less than the amplitude resolution of the A/D converter, and an evaluation unit (30) for further evaluation of the split signals.
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Citations
13 Claims
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1. Device for machine diagnostics, comprising
a vibration sensor for detecting vibration on a machine and outputting vibration signals representative of vibration detected, a conditioning unit for conditioning the vibration signals, an A/D converter for digitizing the conditioned vibration signals, a data processing unit directly connected to the A/D converter for splitting the digitized signals received directly from the A/D converter into parallel split signals for at least two different frequency ranges, the data processing unit being adapted for scaling the signal for each of the different frequency ranges to an amplitude resolution which is less than the amplitude resolution of the digitized signals produced by the A/D converter, and an evaluation unit receiving the parallel split signals for evaluation and modification.
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11. Process for machine diagnostics, comprising the steps of:
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detecting vibration on a machine by means of a vibration sensor which produces vibration signals representative of vibration detected, conditioning the vibration signals, digitizing the conditioned vibration signals by means of an A/D converter, splitting the digitized signals into parallel split signals for at least two different frequency ranges by means of a data processing unit that is directly connected to the A/D converter, and for each frequency range, the signal being scaled to an amplitude resolution which is less than the amplitude resolution of the digitized signals produced by the A/D converter, and transferring the parallel split signals to an evaluation unit for evaluation and modification. - View Dependent Claims (12, 13)
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Specification