Work

A Passive Low‐Frequency, High‐Sensitivity Diamagnetic Levitation Accelerometer

Year: 2026

Type: article

Abstract: ABSTRACT Despite the great potential of diamagnetic levitation accelerometers in detecting low‐frequency and weak motion, there is still a demand to further enhance their sensitivity for geophysical and microgravity applications. In this study, a straightforward structural modulating approach is presented to enhance the sensitivity of diamagnetic levitation accelerometer from both theoretical and experimental aspects. It is demonstrated that by regulating the structural parameters of sensing element and permanent magnets, one can refine the magnetic field, diamagnetic forces, and eddy current effect, making it feasible to improve the sensitivity. With the optimized structural parameters, a remarkable sensitivity of 7.32 mm/g, accompanied by ultra‐low frequency detection capability (0–1.8 Hz), fine resolution (32 μg), and low noise (6.256 μg/Hz 1/2 ), can be achieved, highlighting the viability of structural design in developing a high‐sensitivity accelerometer.

Source: International journal of mechanical system dynamics

DOI: 10.1002/msd2.70066

Authors: Yuanping Xu, Yang Wang, Lu Yang, Jin Zhou, Zhiqiang Zhang, Yanxiao Lei

Institutions: Nanjing University of Aeronautics and Astronautics, Hohai University, CRRC (China)

Language: English

Topic: Magnetic Bearings and Levitation Dynamics

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,500

Funder: National Natural Science Foundation of China