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Suitability of MEMS Accelerometers for Condition Monitoring: An experimental study

View Article: PubMed Central - PubMed

ABSTRACT

With increasing demands for wireless sensing nodes for assets control and condition monitoring; needs for alternatives to expensive conventional accelerometers in vibration measurements have been arisen. Micro-Electro Mechanical Systems (MEMS) accelerometer is one of the available options. The performances of three of the MEMS accelerometers from different manufacturers are investigated in this paper and compared to a well calibrated commercial accelerometer used as a reference for MEMS sensors performance evaluation. Tests were performed on a real CNC machine in a typical industrial environmental workshop and the achieved results are presented.

No MeSH data available.


Frequency domain of accelerometers responses when the shaker is excited by a random noise
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f14-sensors-08-00784: Frequency domain of accelerometers responses when the shaker is excited by a random noise

Mentions: Similar to the sinusoidal tests; the shaker was excited with random excitation in a frequency band from 10Hz to1.5 kHz with different amplitudes. Averaged accelerometers responses in time and frequency domains are shown in Figures 13 and 14. All accelerometers responses look identical in time and frequency domains, but here again the estimated sensitivity found to be not stable for MEMS (C). For the MEMS (A) and (B) it is close and not much different from the estimated sensitivity during the sinusoidal tests.


Suitability of MEMS Accelerometers for Condition Monitoring: An experimental study
Frequency domain of accelerometers responses when the shaker is excited by a random noise
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3672998&req=5

f14-sensors-08-00784: Frequency domain of accelerometers responses when the shaker is excited by a random noise
Mentions: Similar to the sinusoidal tests; the shaker was excited with random excitation in a frequency band from 10Hz to1.5 kHz with different amplitudes. Averaged accelerometers responses in time and frequency domains are shown in Figures 13 and 14. All accelerometers responses look identical in time and frequency domains, but here again the estimated sensitivity found to be not stable for MEMS (C). For the MEMS (A) and (B) it is close and not much different from the estimated sensitivity during the sinusoidal tests.

View Article: PubMed Central - PubMed

ABSTRACT

With increasing demands for wireless sensing nodes for assets control and condition monitoring; needs for alternatives to expensive conventional accelerometers in vibration measurements have been arisen. Micro-Electro Mechanical Systems (MEMS) accelerometer is one of the available options. The performances of three of the MEMS accelerometers from different manufacturers are investigated in this paper and compared to a well calibrated commercial accelerometer used as a reference for MEMS sensors performance evaluation. Tests were performed on a real CNC machine in a typical industrial environmental workshop and the achieved results are presented.

No MeSH data available.