Experimental analysis of rotor unbalance using low-cost instrumentation based on the MPU-6050
Year: 2025
Type: article
Abstract: Vibration analysis is a fundamental technique in predictive maintenance, primarily used to detect early-stage faults in mechanical equipment. Despite its effectiveness, the high initial investment often required for traditional vibration monitoring systems motivates the development of low-cost alternatives. This study presents the development of a cost-effective diagnostic system based on the ESP-32 microcontroller and the MPU-6050 accelerometer. Signal acquisition and processing were performed using open-source tools, and the results were benchmarked against those obtained with the commercial SKF Microlog GX-75 system. Experimental tests were conducted under various rotor unbalance conditions. The proposed system demonstrated strong agreement with the commercial device, achieving a maximum mean absolute error of 0.72 mm/s and stable readings. Nevertheless, further investigation is required regarding the influence of sensor mounting conditions on measurement accuracy. The unbalance characterization findings align well with those reported in the literature.
Authors: David Luiz Silva Rodrigues, Caio do Carmo Dantas, Lucas Botelho da Cruz, Hygor Santiago Lara, Vinicius Augusto Diniz Silva, Jorge Nei Brito
Institution: Federal University of São João del-Rei
Language: English
Subfield: Control and Systems Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413888729