Dynamic Calibration of Quartz Flexure Accelerometers

• Published in: Sensors (Basel, Switzerland) Vol. 25; no. 16; p. 5096
• Main Authors: Sheng, Xuan, Wang, Xizhe, Chen, Wenying, Shu, Yang, Zhang, Kai
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 16.08.2025; MDPI
• Subjects: Accelerometers; Accuracy; Calibration; calibration method; dual-axis precision centrifuge; dynamic behavior; Mathematical models; Methods; Parameter identification; Performance evaluation; quartz flexure accelerometers; Sensors; quartz flexure accelerometers; dynamic behavior; calibration method; dual-axis precision centrifuge
• ISSN: 1424-8220; 1424-8220
• DOI: 10.3390/s25165096

The dynamic behavior of quartz flexure accelerometers remains a subject of ongoing investigation, particularly in areas such as theoretical modeling, standardization, calibration methodology, and performance evaluation. To address the limitation of conventional static calibration models in accurately representing accelerometer responses under dynamic acceleration excitation, a dynamic calibration model is proposed. A mathematical model is first developed based on the physical mechanism of the accelerometer, characterizing its intrinsic dynamic response. Simulation-based analysis demonstrates that the proposed dynamic model offers significantly improved accuracy compared to traditional static approaches. Furthermore, a dynamic calibration method leveraging a dual-axis precision centrifuge is designed and validated. The results confirm that the proposed approach enables the precise calibration of quartz flexure accelerometers in accordance with the dynamic model. The calibration of the dynamic parameter yields a relative standard deviation of −0.048%.