Over the last decade, smartphones have become an essential part of numerous applications in daily life activities. Contrary to professional equipment, smartphones are available to everyone and are not expensive, which is why it is a valuable opportunity to exploit smartphone capabilities for professional applications. This paper presents an experimental evaluation of integrated MEMS accelerometers into smartphones to assess their performance for vibration monitoring, with the expectation to use them for educational and modest industrial purposes. This study presents an evaluation of two different devices having different specifications, which evaluates the extracted features of the vibration data collected from both devices. A shaking table test was carried out to compare the two MEMS accelerometers results with professional equipment. Finally, a case study was conducted to monitor the condition of two bearings running at low rotational speed (600 rpm) using the vibration data acquired through both smartphones. Experimental results indicate that smartphones can be a useful instrument for monitoring the condition of bearings.
11
Feb
2017