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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.


CNC machine vibration measured by the MEMS accelerometers at speed of 2400 rpm
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f18-sensors-08-00784: CNC machine vibration measured by the MEMS accelerometers at speed of 2400 rpm

Mentions: Data were also collected using MEMS accelerometers from a CNC machine in a typical industrial environment; see Figure (17). The vibration of the CNC machine was collected under a speed of 2400 rpm. Time and frequency domains of both data sets are shown in Figure (18). A satisfactory performance is achieved by both MEMS (A) and (B) accelerometers as expected and this was comparable and in good agreement with the conventional accelerometer. The fundamental speed and its harmonics (40, 80 and 160Hz) are measured by both accelerometers, line frequency and its multiples also exist in the frequency domain spectrum.


Suitability of MEMS Accelerometers for Condition Monitoring: An experimental study
CNC machine vibration measured by the MEMS accelerometers at speed of 2400 rpm
© Copyright Policy
Related In: Results  -  Collection

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

f18-sensors-08-00784: CNC machine vibration measured by the MEMS accelerometers at speed of 2400 rpm
Mentions: Data were also collected using MEMS accelerometers from a CNC machine in a typical industrial environment; see Figure (17). The vibration of the CNC machine was collected under a speed of 2400 rpm. Time and frequency domains of both data sets are shown in Figure (18). A satisfactory performance is achieved by both MEMS (A) and (B) accelerometers as expected and this was comparable and in good agreement with the conventional accelerometer. The fundamental speed and its harmonics (40, 80 and 160Hz) are measured by both accelerometers, line frequency and its multiples also exist in the frequency domain spectrum.

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.