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

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A4 Artikkeli konferenssijulkaisussa

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en

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13

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12th International Conference on Vibrations in Rotating Machinery, pp. 498-510

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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.