Vibration Diagnostics of Electrical Machines by means of Optoelectronic Sensors
نویسندگان
چکیده
Abstract: The proposed method allows determining the level of wear of the bearings of electric machines by means of rotor radial displacement during operation. Measurement is effected by non-contact method and optoelectronic sensor which converts the rotor mechanical motion into electric signal. Received informational signal is recorded and processed by computer system. Based on the processed input signal it is possible by means of mathematical algorithm to calculate the amplitude of rotor angular vibration. Then the revolution and the inherent vibration frequency of the rotor are compared followed by estimation the level of bearings wear. This evaluation can be used to forecast the residual operation margine of the machine.
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