Vibration monitor predicts failures, sends alarms

ifm efector reports that its vibration monitor, efector Octavis, can detect rolling element bearing failures and shaft unbalance conditions on pumps, motors, compressors, fans, spindles, and other plant equipment. Permanent mounting allows it to continuously monitor a machine's operating condition by analyzing the device's vibration signature, and then predicting failures, and sending an alarm ...

01/01/2005



ifm efector reports that its vibration monitor, efector Octavis, can detect rolling element bearing failures and shaft unbalance conditions on pumps, motors, compressors, fans, spindles, and other plant equipment. Permanent mounting allows it to continuously monitor a machine's operating condition by analyzing the device's vibration signature, and then predicting failures, and sending an alarm output signal to a PLC or relay.

efector Octavis' monitor incorporates a MEMS accelerometer, analog-to-digital (A/D) converter, digital signal processor (DSP) and diagnostic electronics in a 40 x 40-mm package. These electronic components enable the monitor to gather, process, and interpret vibration data. The accelerometer monitors the acceleration value via a change in capacitance signal. The A/D converter transforms the analog signal from the MEMS sensor to a digital signal.

Meanwhile, an integrated DSP performs mathematical calculations to convert the time domain vibration signal into a frequency domain signal known as Fast Fourier Transformation (FFT). The integrated DSP can process up to 32,000 calculations per second. Configuration software is used to input application parameters, such as bearing dimensions and shaft speed, focusing on critical frequencies in the vibration spectrum and ignoring external noise. One efector Octavis monitor can detect up to five rolling elements on a machine by looking at distinct waveform signatures of each. www.ifmefector.com

  • Detects bearing failures and shaft unbalance conditions on critical plant equipment

  • Analyzes vibration signatures to predict failures in advance

  • Sends alarm output signal to PLC or relay





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