Preliminary investigation on the development of low-cost vibration based condition monitoring DAQ system in industry 4.0
DOI:
https://doi.org/10.58368/MTT.23.5-6.2024.1-7Keywords:
MEMS Sensor, Vibration Analysis, DAQ, Condition MonitoringAbstract
This paper presents a preliminary investigation into the development of a low-cost, vibration-based data acquisition (DAQ) system for condition monitoring in the context of Industry 4.0. The system utilizes a single-axis MEMS accelerometer with a sensitivity of 40 mV/g and a frequency response range of DC to 11 kHz (3 dB) to capture vibration data. This data is processed in real-time at the edge using an ST microcontroller to compute the FFT spectrum. The accuracy of the preliminary vibration data was validated against a reference setup comprising a vibration exciter and an OROS vibration analyzer. When the prototype DAQ module, equipped with the MEMS sensor, was tested on a three-phase induction motor alongside a reference piezoelectric accelerometer, the computed FFT spectra from both setups demonstrated strong similarity. Beyond conventional analysis, the raw data from the DAQ system is integrated into a live dashboard for real-time signal interpretation. Further optimization of this low-cost DAQ system aims to address the condition monitoring needs of micro, small, and medium enterprises (MSMEs), enabling in-situ asset monitoring at an affordable price point.
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