Multiple-point vibration testing with micro-electromechanical accelerometers and micro-controller unit. (June 2017)

• Record Type: Journal Article
• Authors: Chan, Yum Ji; Huang, Jing-Wei
• Is Part Of: Mechatronics. Volume 44(2017)
• Page Start: 84
• Page End: 93
• Publication Date: 2017-06
• Subjects: MEMS Accelerometers -- Multiple point measurements -- Vibration monitoring; Computer integrated manufacturing systems -- Periodicals; Flexible manufacturing systems -- Periodicals; Mechatronics -- Periodicals; Productique -- Périodiques; Fabrication, Systèmes flexibles de -- Périodiques; Mécatronique -- Périodiques; Computer integrated manufacturing systems; Flexible manufacturing systems; Mechatronics; Periodicals; 629.89
• DOI: 10.1016/j.mechatronics.2017.04.006
• Languages: English
• ISSNs: 0957-4158

Abstract

Abstract: A two-point vibration measurement system with bandwidth of 500 Hz has been constructed using low-cost standardized components, including MPU-6050 microelectrical-mechanical system (MEMS) accelerometers and a microprocessor unit. Methods to tackle sampling frequency stability and jitter in the proposed system are described. Compared with the upper frequency limit of 15 Hz in previous studies, operating deflection shapes (ODSs) up to 88 Hz are successfully identified (with mode assurance criterion (MAC) values exceeding 0.85) on a milling machine using the proposed system.