Vibration monitoring of a large rotor utilizing internet of things based on-shaft MEMS accelerometer with inverse encoder

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openAccess
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Conference article in proceedings
Date
2020
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Language
en
Pages
13
498-510
Series
12th International Conference on Vibrations in Rotating Machinery
Abstract
Typically, accelerometer-based vibration measurements of rotating machinery are conducted with sensors mounted to a static part of the machine. Now, with increasing accuracy of compact and low powered microelectromechanical systems (MEMS) accelerometers, on-shaft vibration measurements have become an interesting research topic. MEMS sensors are optimal for internet of things (IoT) applications and wireless measurements, which makes on-shaft measurements more convenient. However, typically in wireless applications, the sample clock is time-based, and thus the data is not bound to the phase of the rotating rotor. In this research, a novel wireless sensor unit with an inverse encoder is mounted to the end of a large rotor to investigate the dynamic behavior of the rotor. In addition, a method to separate the vertical and horizontal vibration from the sensor data is studied.
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Koene , I , Viitala , R & Kuosmanen , P 2020 , Vibration monitoring of a large rotor utilizing internet of things based on-shaft MEMS accelerometer with inverse encoder . in 12th International Conference on Vibrations in Rotating Machinery . CRC Press , pp. 498-510 , International Conference on Vibrations in Rotating Machinery , 14/10/2020 .